MANUFACTURING PROCESSES Grinding Grinding is a precision manufacturing process widely used in the production of engineered fasteners and components to achieve tight tolerances, high surface finish quality, and accurate dimensions. It involves the use of an abrasive wheel that removes material through controlled wear, shaping the fastener to its required specifications. The Grinding Process: 1. Setup: The fastener or component is securely held in place using fixtures or chucks, ensuring stability during the grinding process. 2. Abrasive Wheel: A rotating abrasive wheel, typically made of materials like aluminum oxide, silicon carbide, or diamond, is used to remove material from the workpiece. The wheel’s grain size, bond type, and hardness are chosen based on the material and desired finish. 3. Material Removal: The grinding wheel contacts the workpiece surface, removing material through abrasion. This generates heat, which is managed with a coolant to prevent thermal damage or distortion. 4. Precision and Finish: Grinding is capable of producing extremely tight tolerances (often within microns) and smooth surface finishes, making it ideal for critical fastener components. Types of Grinding for Fasteners: 1. Surface Grinding: Used for flat or slightly contoured surfaces on fasteners, such as flange faces or bolt heads. Ensures uniformity and smoothness. 2. Cylindrical Grinding: Common for shafts, pins, and bolts where the cylindrical shape requires precise diameters and surface finishes. Both external and internal cylindrical grinding can be applied. 3. Centerless Grinding: Ideal for mass-producing fasteners with cylindrical shapes (e.g., bolts and rods). The fastener is held between a grinding wheel and a regulating wheel, eliminating the need for a center or chuck. 4. Thread Grinding: Used to form precise threads on screws and bolts with high accuracy and excellent surface finishes. 5. Form Grinding: Shapes the fastener to a specific profile, often used for unique or complex designs. Benefits of Grinding for Fasteners: High Precision: Achieves tolerances as low as ±0.001 mm, critical for applications requiring exact fits. Superior Surface Finish: Provides mirror-like finishes with low surface roughness, reducing friction and wear. Versatility: Can process a wide range of materials, including hard-to-machine alloys like titanium, nickel, and MP35N. Customizability: Adapts to specific profiles and designs for specialized fastener applications. Applications in Engineered Fasteners: Thread Finishing: Ensures precision threads for bolts, screws, and studs, critical in aerospace and nuclear industries. Dimensional Control: Achieves tight tolerances for fasteners used in high-performance applications. Surface Enhancement: Produces smooth, wear-resistant surfaces for improved performance and durability. Pre- and Post-Coating Preparation: Prepares surfaces for coatings or polishes them after treatment for aesthetic or functional purposes. Challenges in Grinding: Thermal Damage: Excessive heat from grinding can lead to material distortion or surface microcracking, especially in heat-treated materials. Coolants are essential to manage heat. Tool Wear: Abrasive wheels wear over time, requiring regular maintenance or replacement. Cycle Time: Grinding can be slower than other material removal processes, especially for large-scale production. Cost: The precision and specialized equipment required make grinding more expensive than other finishing methods. Why Grinding is Essential: Grinding is indispensable for producing high-precision fasteners with excellent surface quality, meeting the stringent requirements of industries like aerospace, defense, and medical. It ensures that fasteners perform reliably under extreme conditions, making it a cornerstone in advanced manufacturing. Cold Heading Hot Heading EDM Milling Turning Swiss Machining Drilling Roll Threading Cut Threading Broaching Heat Treatment Austenitizing Tempering Normalizing Stress Relieving Grinding Polishing Dot Peen Marking Laser Marking MANUFACTURING Explore our manufacturing capabilities OUR PRODUCTS Explore our products Specialty Engineered Fasteners Learn more about our Engineered Fasteners, precision-crafted for specialized and critical applications in diverse industries. Machined Parts Learn more about our custom-designed Machined Components expertly crafted for applications across a range of industries. Precision Shear Products Explore our shear product manufacturing and quality capabilities, delivering precision solutions for the most demanding applications. DOING WHATEVER IT TAKES Need product help or engineering support? Contact our team of fastener experts today CONTACT

testing capabilities Eddy Current Testing (ET) Eddy Current Testing (ET) is a non-destructive testing (NDT) method that uses electromagnetic induction to detect surface and near-surface flaws in conductive materials. When an alternating current flows through a coil, it creates a magnetic field that induces circulating currents (eddy currents) in the test material. Disruptions to these currents caused by cracks, corrosion, or changes in material properties are measured and displayed, revealing potential defects. How the Test is Performed Preparation – The fastener or component is cleaned to remove dirt, grease, or coatings that might affect results. Coil Excitation – A probe containing a coil is energized with alternating current, generating a magnetic field. Induction of Eddy Currents – As the probe is placed near the conductive material, eddy currents are induced within the component. Disruption Detection – Any discontinuities, such as cracks or changes in material thickness, disrupt the flow of eddy currents. Signal Analysis – Variations in the currents are detected by the probe and displayed for interpretation by skilled inspectors. Documentation – Results are recorded to verify compliance and provide traceability. Why It is Performed Eddy Current Testing is performed because it is fast, highly sensitive, and effective for detecting surface cracks, corrosion, and material variations without damaging the part. Unlike some other methods, ET requires minimal surface preparation and can often be performed quickly on complex shapes, making it well-suited for fasteners and precision components. Detects cracks, corrosion, and material inconsistencies Can measure conductivity, hardness, and coating thickness Provides rapid results without the need for couplants or extensive cleaning Application to Engineered Fasteners For engineered fasteners, ensuring surface integrity and consistent material properties is critical. Fasteners must endure heavy loads, vibration, and environmental exposure in industries such as aerospace, energy, and defense. A surface crack or metallurgical inconsistency can lead to early failure in service. By applying Eddy Current Testing, TSP Manufacturing ensures: Detection of surface cracks and flaws before components enter service Verification of proper material properties and heat treatment Consistency in quality across high-volume production runs Confidence in the long-term reliability of safety-critical fasteners Standards & Compliance TSP Manufacturing performs Eddy Current Testing in accordance with ASTM, ASME, and industry-specific standards , as well as customer-driven requirements. Our inspectors are trained and certified to recognized NDT programs, ensuring accuracy and consistency in every inspection. This adherence to standards reinforces our reputation for quality and provides customers with assurance that our engineered fasteners and machined components meet the highest levels of reliability and compliance. DOING WHATEVER IT TAKES Need product help or engineering support? Contact our team of fastener experts today CONTACT OUR PRODUCTS Explore our products Specialty Engineered Fasteners Learn more about our Engineered Fasteners, precision-crafted for specialized and critical applications in diverse industries. Machined Parts Learn more about our custom-designed Machined Components expertly crafted for applications across a range of industries. Precision Shear Products Explore our shear product manufacturing and quality capabilities, delivering precision solutions for the most demanding applications.

testing capabilities Hardness Test A Hardness Test is a method of measuring a material’s resistance to deformation, indentation, or scratching. In manufacturing, hardness is closely tied to strength, wear resistance, and durability—critical properties for engineered fasteners and machined components. Various hardness scales (such as Rockwell, Brinell, or Vickers) are used depending on the material and application, providing precise data to ensure that parts meet design and performance requirements. How the Test is Performed Preparation – The fastener or component surface is cleaned to remove oils, coatings, or debris that could affect accuracy. Indenter Application – A controlled load is applied using a standardized indenter (such as a steel ball or diamond cone). Measurement – The depth or size of the indentation is measured, then compared against the appropriate hardness scale. Repeatability – Multiple tests can be performed on different areas of the component to confirm consistency. Documentation – Results are recorded to provide traceable data for quality assurance and compliance. Why It is Performed Hardness testing is performed to ensure that materials and finished fasteners possess the necessary strength and durability for demanding applications. A fastener that is too soft may deform or wear prematurely, while one that is too hard may become brittle and prone to cracking. By verifying hardness, TSP Manufacturing ensures that every part meets the performance balance required for safety and reliability. Confirms material strength and durability Verifies heat treatment and manufacturing processes Prevents premature wear, deformation, or failure in service Ensures consistency across production runs Application to Engineered Fasteners Engineered fasteners often operate under extreme loads, vibration, and environmental stress. Their hardness level directly affects how they perform over time, especially in industries such as aerospace, oil & gas, defense, and nuclear power. By applying hardness testing, TSP Manufacturing ensures: Correct material properties for strength and toughness Verification of heat-treated fasteners to confirm proper hardness levels Prevention of failure modes related to excessive softness or brittleness Confidence in product performance for safety-critical applications Standards & Compliance TSP Manufacturing performs hardness testing in accordance with ASTM, ISO, and customer-specific standards , using properly calibrated equipment and certified procedures. Our inspectors are trained to ensure accuracy, consistency, and traceability across all test results. By adhering to these recognized standards, we reinforce customer confidence and demonstrate our commitment to delivering engineered fasteners and machined components that meet the highest quality expectations. DOING WHATEVER IT TAKES Need product help or engineering support? Contact our team of fastener experts today CONTACT OUR PRODUCTS Explore our products Specialty Engineered Fasteners Learn more about our Engineered Fasteners, precision-crafted for specialized and critical applications in diverse industries. Machined Parts Learn more about our custom-designed Machined Components expertly crafted for applications across a range of industries. Precision Shear Products Explore our shear product manufacturing and quality capabilities, delivering precision solutions for the most demanding applications.

testing capabilities Liquid Penetrant Testing (LPT) Liquid Penetrant Testing (LPT), sometimes called Dye Penetrant Inspection, is a non-destructive testing (NDT) method used to identify surface-breaking defects in non-porous materials. The test works by applying a liquid dye to a component’s surface, which seeps into even the smallest cracks, seams, or pores that may not be visible to the naked eye. This makes it highly effective for detecting defects that could compromise the integrity of precision-engineered parts. How the Test is Performed Preparation – The fastener or component is carefully cleaned so that no oils, dirt, or debris interfere with the test. Penetrant Application – A visible or fluorescent dye is applied across the surface, allowing it to seep into any surface flaws through capillary action. Excess Removal – The surface is cleaned, leaving the penetrant only in defects. Developer Application – A developer is applied to draw the dye back out, making flaws clearly visible under white or UV light. Inspection – Skilled inspectors review the part under the appropriate lighting to identify any discontinuities. Final Cleaning – After inspection, the part is cleaned again to remove any test materials. Why It is Performed LPT is performed to ensure that every fastener and machined component meets the highest standards of safety and performance. Even a small surface crack in a critical fastener can lead to premature failure, downtime, or safety risks in demanding applications. By detecting these flaws early, LPT helps ensure reliability and compliance with stringent industry requirements. Detects cracks, laps, porosity, or seams that are invisible to the eye Verifies the quality of components before they are put into service Prevents costly failures in mission-critical applications Application to Engineered Fasteners For engineered fasteners and machined components, surface integrity is essential. Fasteners are often subject to extreme loads, vibrations, and environmental conditions in industries such as aerospace, oil & gas, nuclear, and defense. A surface flaw left undetected could grow into a critical failure point under stress. By applying Liquid Penetrant Testing to our manufactured fasteners, TSP ensures: Structural reliability in high-stress environments Enhanced product life cycle by identifying defects before service Confidence in safety-critical applications where performance cannot be compromised Standards & Compliance At TSP Manufacturing, our Liquid Penetrant Testing is performed in accordance with recognized industry standards, including ASTM, ASME, and customer-specific specifications. By following these rigorous guidelines, we ensure that every inspection is accurate, repeatable, and compliant with the requirements of critical industries such as aerospace, oil & gas, and defense. This adherence to standards underscores our commitment to delivering fasteners and machined components that consistently meet or exceed customer expectations. DOING WHATEVER IT TAKES Need product help or engineering support? Contact our team of fastener experts today CONTACT OUR PRODUCTS Explore our products Specialty Engineered Fasteners Learn more about our Engineered Fasteners, precision-crafted for specialized and critical applications in diverse industries. Machined Parts Learn more about our custom-designed Machined Components expertly crafted for applications across a range of industries. Precision Shear Products Explore our shear product manufacturing and quality capabilities, delivering precision solutions for the most demanding applications.

MANUFACTURING PROCESSES Milling Milling is a versatile and widely used manufacturing process in the production of engineered fasteners and components. It involves the removal of material from a workpiece to create desired shapes, dimensions, or features using a rotating cutting tool. The Milling Process: 1. Workpiece Setup: The raw material (workpiece) is secured on a milling machine table or in a vice. Materials used include metals like alloy steels, aluminum, stainless steel, titanium, and nickel alloys. 2. Tool Selection: A cutting tool, typically made of carbide, high-speed steel, or diamond-coated materials, is chosen based on the material and the desired operation. Tools may include end mills, face mills, or specialty cutters. 3. Cutting Operation: The cutting tool rotates at high speeds while the workpiece is moved along multiple axes (X, Y, and Z). The cutting process removes material in layers to achieve the desired geometry. 4. CNC Control (Optional): For precision manufacturing, CNC (Computer Numerical Control) milling machines are used to automate and control the process, ensuring repeatability and high accuracy. 5. Finishing and Inspection: After milling, the component may undergo additional operations like deburring, polishing, or coating to meet exact specifications. Types of Milling: Face Milling: Creates flat surfaces and finishes on the face of the workpiece. Peripheral (Side) Milling: Used to machine deep slots or contours along the sides of the workpiece. 3-Axis, 4-Axis, or 5-Axis Milling: Multi-axis machines allow for complex geometries and tight tolerances, crucial for precision-engineered components. Advantages of Milling: Versatility: Capable of producing a wide range of shapes and sizes. Precision: Provides tight tolerances and excellent surface finishes, especially with CNC milling. Material Compatibility: Works well with a variety of metals used in high-performance industries. Efficiency: CNC milling enables rapid and repeatable production. Applications in Engineered Fasteners: Milling is often used in the manufacturing of specialized or custom fasteners, as well as precision components. Specific applications include: Custom Shapes: Non-standard fasteners requiring unique geometries, such as grooves, threads, or hexagonal heads. Complex Components: Features like slots, holes, or keyways can be machined into parts. Prototype and Low-Volume Runs: Ideal for prototyping or producing small quantities of precision fasteners for aerospace, robotics, and defense applications. Adapters or Housings: Milling is used to create components that interface with fasteners, such as flanges, brackets, or mounting plates. Limitations Material Waste: Milling is a subtractive process, so material wastage can be significant compared to forming processes like cold or hot heading. Cost: Milling can be more expensive for high-volume production compared to other methods like cold heading. Complexity: Extremely intricate geometries may require additional processes or more advanced equipment. Cold Heading Hot Heading EDM Milling Turning Swiss Machining Drilling Roll Threading Cut Threading Broaching Heat Treatment Austenitizing Tempering Normalizing Stress Relieving Grinding Polishing Dot Peen Marking Laser Marking MANUFACTURING Explore our manufacturing capabilities OUR PRODUCTS Explore our products Specialty Engineered Fasteners Learn more about our Engineered Fasteners, precision-crafted for specialized and critical applications in diverse industries. Machined Parts Learn more about our custom-designed Machined Components expertly crafted for applications across a range of industries. Precision Shear Products Explore our shear product manufacturing and quality capabilities, delivering precision solutions for the most demanding applications. DOING WHATEVER IT TAKES Need product help or engineering support? Contact our team of fastener experts today CONTACT

testing capabilities Adjustable Ring Gauge An Adjustable Ring Gauge is a precision measurement tool used to verify the external dimensions of cylindrical components, such as fastener threads or shafts. Unlike fixed gauges, adjustable ring gauges can be calibrated to a range of dimensions, allowing them to measure multiple part sizes with high accuracy. This makes them ideal for quality inspection of engineered fasteners where tight tolerances are critical. How the Inspection is Performed Calibration – The adjustable ring gauge is set to the nominal dimension of the component being inspected, based on design specifications or standards. Component Insertion – The fastener or part is inserted into the gauge to check for proper fit. Verification – If the part fits correctly without excessive play or binding, it meets dimensional specifications. Adjustment – For multiple sizes, the gauge can be recalibrated to the next nominal dimension, allowing efficient inspection of different components. Documentation – Results are recorded to ensure traceability and compliance with quality standards. Why It is Performed Adjustable Ring Gauge inspection ensures that external dimensions, including thread diameters and shank sizes, are within design tolerances. This is critical because even minor deviations can affect assembly, load-bearing capacity, and overall component performance. By using this precise inspection method, TSP Manufacturing guarantees that engineered fasteners meet exacting standards before they leave our facility. Confirms dimensional accuracy of threads, shafts, and cylindrical features Detects out-of-tolerance parts before assembly or use Provides a fast, repeatable method for high-volume inspections Ensures consistent quality across production batches Application to Engineered Fasteners Engineered fasteners rely on precise external dimensions to ensure proper fit and function. Threads must mate correctly with nuts or tapped holes, and shank diameters must conform to design tolerances to maintain strength under load. By using Adjustable Ring Gauge inspections, TSP Manufacturing ensures: Accurate thread and shank dimensions for reliable assembly Conformance to critical tolerances in high-performance applications Consistency across production runs to support customer confidence Enhanced safety and reliability in industries such as aerospace, defense, oil & gas, and nuclear Standards & Compliance TSP Manufacturing conducts Adjustable Ring Gauge inspections in accordance with ASME, ASTM, ISO, and customer-specific standards . Gauges are regularly calibrated, and our quality inspectors are trained to follow strict protocols, ensuring that every measurement is accurate and traceable. This adherence to standards builds credibility and reinforces our commitment to producing engineered fasteners that meet the highest levels of quality and performance. DOING WHATEVER IT TAKES Need product help or engineering support? Contact our team of fastener experts today CONTACT OUR PRODUCTS Explore our products Specialty Engineered Fasteners Learn more about our Engineered Fasteners, precision-crafted for specialized and critical applications in diverse industries. Machined Parts Learn more about our custom-designed Machined Components expertly crafted for applications across a range of industries. Precision Shear Products Explore our shear product manufacturing and quality capabilities, delivering precision solutions for the most demanding applications.

testing capabilities Creep Test A Creep Test measures how a material deforms over time when subjected to a constant load and elevated temperature. Unlike standard tensile or hardness tests, which provide immediate property data, creep testing evaluates a material’s long-term behavior under sustained stress . This test is especially important for fasteners used in high-temperature environments, where even small amounts of time-dependent deformation can lead to joint loosening, dimensional instability, or failure. How the Test is Performed Specimen Preparation – A fastener or representative sample is prepared and mounted in a creep testing machine. Constant Load Application – A steady load, typically a percentage of the material’s tensile strength, is applied. Elevated Temperature Exposure – The specimen is heated to a defined service-relevant temperature and maintained throughout the test. Monitoring Deformation – Elongation or strain is continuously measured over an extended period (ranging from hours to months). Data Collection – The rate of deformation and time to failure (if it occurs) are recorded and analyzed. Why It is Performed Creep testing is performed to predict how materials and fasteners will behave under long-term service conditions , particularly in environments involving high heat and sustained loads. This ensures that components will not gradually deform or fail in ways that could compromise equipment safety and reliability. Evaluates time-dependent deformation at elevated temperatures Predicts service life under continuous stress Verifies material and heat-treatment suitability Prevents dimensional changes or joint failures in critical applications Application to Engineered Fasteners Engineered fasteners often operate in turbomachinery, aerospace engines, nuclear reactors, and energy systems , where they are exposed to both constant loads and extreme temperatures. Creep testing helps TSP Manufacturing ensure that fasteners: Maintain dimensional stability over long service periods Resist gradual loosening that could compromise bolted joints Perform reliably in high-temperature environments Extend equipment lifespan by preventing premature failure Standards & Compliance At TSP Manufacturing, creep testing is performed in compliance with ASTM, ISO, and industry-specific standards to ensure reliable and repeatable results. Our testing equipment is precisely calibrated, and all testing is carried out by qualified personnel. By adhering to these recognized standards, we provide customers with confidence that our engineered fasteners and machined components will meet the demanding requirements of industries where long-term, high-temperature performance is essential. DOING WHATEVER IT TAKES Need product help or engineering support? Contact our team of fastener experts today CONTACT OUR PRODUCTS Explore our products Specialty Engineered Fasteners Learn more about our Engineered Fasteners, precision-crafted for specialized and critical applications in diverse industries. Machined Parts Learn more about our custom-designed Machined Components expertly crafted for applications across a range of industries. Precision Shear Products Explore our shear product manufacturing and quality capabilities, delivering precision solutions for the most demanding applications.

testing capabilities Digital Optical Comparator A Digital Optical Comparator is a precision inspection tool used to measure and verify the geometry of manufactured parts without physical contact. By projecting a magnified image of a component onto a digital screen and comparing it directly to CAD data or dimensional tolerances, this method allows for highly accurate evaluation of critical features such as threads, diameters, radii, and angles. Unlike traditional mechanical comparators, the digital system provides enhanced accuracy, repeatability, and automated reporting capabilities. How the Inspection is Performed Preparation – The fastener or machined component is cleaned and securely positioned on the comparator stage. Imaging – High-resolution optics capture a magnified profile of the part under precise lighting. Comparison to CAD/Standards – The profile is digitally overlaid against CAD models or programmed dimensional tolerances. Measurement Capture – Features such as thread profiles, head geometry, diameters, and angles are measured with micron-level precision. Documentation – Results are stored in digital reports, ensuring full traceability for quality records. Why It is Performed Digital Optical Comparator inspections are performed to verify that parts are manufactured exactly to specification. Even slight dimensional deviations can affect assembly, performance, or safety. By using non-contact optical measurement, TSP can quickly and accurately confirm that all engineered fasteners and machined components conform to tight tolerances. Confirms dimensional accuracy and adherence to design specifications Detects deviations before parts move into critical applications Improves inspection efficiency through digital comparison and automated reporting Ensures quality consistency across production runs Application to Engineered Fasteners For engineered fasteners, dimensional precision is critical to performance. Thread accuracy, shank diameter, and head geometry all influence how a fastener engages, transfers load, and withstands stress. A slight variation can cause improper fit, reduced load capacity, or even premature failure in service. By using Digital Optical Comparator inspection, TSP Manufacturing ensures: Tight dimensional control for reliable fit and function Verification of critical features such as thread pitch, head profiles, and bearing surfaces Consistency across production batches to support customer confidence Assurance of quality in industries where tolerances cannot be compromised, such as aerospace, defense, nuclear, and energy Standards & Compliance At TSP Manufacturing, Digital Optical Comparator inspections are performed in alignment with ASME, ASTM, ISO, and customer-specific requirements . Our equipment is routinely calibrated to strict standards, and our inspection personnel are trained to ensure accuracy, repeatability, and traceability. This adherence to industry standards builds credibility and demonstrates our ongoing commitment to delivering fasteners and machined components that consistently meet the highest quality expectations. DOING WHATEVER IT TAKES Need product help or engineering support? Contact our team of fastener experts today CONTACT OUR PRODUCTS Explore our products Specialty Engineered Fasteners Learn more about our Engineered Fasteners, precision-crafted for specialized and critical applications in diverse industries. Machined Parts Learn more about our custom-designed Machined Components expertly crafted for applications across a range of industries. Precision Shear Products Explore our shear product manufacturing and quality capabilities, delivering precision solutions for the most demanding applications.

testing capabilities Plug Gauge A Plug Gauge is a precision inspection tool used to verify the internal dimensions of cylindrical components, such as threaded holes or bores. Plug gauges provide a simple and highly accurate method for confirming that a part’s internal diameter or thread depth meets design specifications. They are especially useful for quality inspection of engineered fasteners, ensuring mating parts will fit correctly and function as intended. How the Inspection is Performed Calibration – The plug gauge is checked and, if necessary, adjusted to match the nominal diameter or thread standard for the part being tested. Insertion – The gauge is inserted into the internal feature of the component, such as a threaded hole or bore. Fit Verification – A proper fit indicates that the part is within tolerance, while a tight or loose fit signals that the part may be out of specification. Repeatability – Multiple parts can be quickly tested with the same gauge, making it ideal for high-volume production. Documentation – Inspection results are recorded for traceability and quality assurance. Why It is Performed Plug Gauge inspection ensures that internal dimensions, such as bores and threads, meet tight tolerances. This is critical because even small deviations can affect assembly, load transfer, and overall component performance. Using plug gauges allows TSP Manufacturing to verify dimensional accuracy efficiently and reliably, preventing defective parts from entering service. Confirms internal diameters and thread dimensions Detects out-of-tolerance components before assembly Provides fast, repeatable inspection for high-volume production Ensures consistent quality and fit for mating parts Application to Engineered Fasteners Engineered fasteners often engage with other components through threaded holes or precision bores. Accurate internal dimensions are essential for proper load distribution, secure fastening, and safe operation. By using Plug Gauge inspections, TSP Manufacturing ensures: Accurate thread and bore dimensions for proper mating and assembly Conformance to design tolerances for safety-critical applications Consistent quality across production runs Reliability in high-performance industries such as aerospace, defense, oil & gas, and nuclear Standards & Compliance TSP Manufacturing performs Plug Gauge inspections in accordance with ASME, ASTM, ISO, and customer-specific standards . Our gauges are routinely calibrated, and inspectors follow rigorous protocols to ensure precise, traceable measurements. Adherence to these standards reinforces TSP’s credibility and commitment to delivering engineered fasteners that consistently meet the highest quality and performance expectations. DOING WHATEVER IT TAKES Need product help or engineering support? Contact our team of fastener experts today CONTACT OUR PRODUCTS Explore our products Specialty Engineered Fasteners Learn more about our Engineered Fasteners, precision-crafted for specialized and critical applications in diverse industries. Machined Parts Learn more about our custom-designed Machined Components expertly crafted for applications across a range of industries. Precision Shear Products Explore our shear product manufacturing and quality capabilities, delivering precision solutions for the most demanding applications.

testing capabilities Positive Material Identification (PMI) Positive Material Identification (PMI) is a non-destructive testing method used to verify the chemical composition of metals and alloys . PMI ensures that the material matches the specified grade or specification, preventing the use of incorrect or substandard materials in critical applications. This verification is essential for engineered fasteners, where material properties directly affect strength, corrosion resistance, and performance. How the Test is Performed Sample Preparation – The surface of the fastener or component is cleaned to remove coatings, oils, or debris. Analysis – A handheld or stationary X-ray fluorescence (XRF) or optical emission spectrometer (OES) device is used to analyze the elemental composition of the metal. Comparison to Specifications – The measured chemical composition is compared to the required material standard or grade. Documentation – Results are recorded, providing traceable verification of material compliance. Why It is Performed PMI is performed to prevent material mix-ups, ensure compliance with specifications, and guarantee performance and safety . Using the wrong material in a fastener could lead to reduced strength, corrosion failure, or catastrophic component failure in service. Confirms alloy and material grade accuracy Prevents use of incorrect or counterfeit materials Supports regulatory and customer requirements Ensures reliability and safety in critical applications Application to Engineered Fasteners Engineered fasteners must often meet strict material requirements to perform in high-stress, high-temperature, or corrosive environments. PMI ensures that: Fasteners are made from the correct alloys to meet mechanical and corrosion resistance requirements Material traceability is documented for quality assurance and regulatory compliance Performance is reliable in aerospace, oil & gas, nuclear, defense, and other critical industries Customer specifications are verified prior to assembly or delivery Standards & Compliance TSP Manufacturing performs PMI in accordance with ASTM, ASME, ISO, and customer-specific standards . All equipment is calibrated regularly, and testing is conducted by trained professionals to ensure accurate, repeatable, and traceable results. This adherence to recognized standards demonstrates TSP’s commitment to quality, safety, and delivering engineered fasteners and machined components that meet exacting specifications. DOING WHATEVER IT TAKES Need product help or engineering support? Contact our team of fastener experts today CONTACT OUR PRODUCTS Explore our products Specialty Engineered Fasteners Learn more about our Engineered Fasteners, precision-crafted for specialized and critical applications in diverse industries. Machined Parts Learn more about our custom-designed Machined Components expertly crafted for applications across a range of industries. Precision Shear Products Explore our shear product manufacturing and quality capabilities, delivering precision solutions for the most demanding applications.

testing capabilities Spectrographic Product Analysis Spectrographic Product Analysis is a precise method used to determine the elemental composition of metals and alloys . By analyzing the spectrum of light emitted from a sample when it is excited by a high-energy source, this technique identifies the presence and concentration of specific elements. For engineered fasteners, this ensures that the material conforms exactly to the required alloy or specification, which is critical for strength, corrosion resistance, and performance. How the Test is Performed Sample Preparation – The fastener or material sample is cleaned to remove contaminants such as oils, coatings, or dirt. Excitation – The sample is exposed to a high-energy source (often an electrical spark or arc) that excites the atoms in the material. Spectral Measurement – The emitted light is captured and analyzed using a spectrometer to determine the types and concentrations of elements present. Comparison to Specifications – Results are compared against the required alloy or material specification to verify compliance. Documentation – Data is recorded and retained for traceability and quality assurance. Why It is Performed Spectrographic Product Analysis is performed to ensure that materials meet strict chemical composition requirements , which directly affect mechanical performance, corrosion resistance, and reliability. This test prevents the use of incorrect or substandard materials that could compromise the safety and effectiveness of engineered fasteners. Confirms alloy composition and grade accuracy Detects impurities or deviations from material specifications Ensures consistent performance and durability Supports regulatory, customer, and industry requirements Application to Engineered Fasteners Engineered fasteners rely on precise material properties to perform under high stress, temperature, and corrosive conditions. Spectrographic Product Analysis ensures that: All fasteners are manufactured from the correct alloys to meet strength and corrosion resistance standards Material consistency is maintained across production batches Customer and regulatory requirements for traceability and quality are satisfied Performance and safety are assured in critical industries such as aerospace, oil & gas, nuclear, and defense Standards & Compliance TSP Manufacturing conducts Spectrographic Product Analysis in accordance with ASTM, ISO, and customer-specific standards . Equipment is regularly calibrated, and testing is performed by trained personnel to guarantee accurate, repeatable, and traceable results. Adherence to these recognized standards demonstrates TSP’s commitment to quality and reliability, ensuring that engineered fasteners and machined components consistently meet the highest industry expectations. DOING WHATEVER IT TAKES Need product help or engineering support? Contact our team of fastener experts today CONTACT OUR PRODUCTS Explore our products Specialty Engineered Fasteners Learn more about our Engineered Fasteners, precision-crafted for specialized and critical applications in diverse industries. Machined Parts Learn more about our custom-designed Machined Components expertly crafted for applications across a range of industries. Precision Shear Products Explore our shear product manufacturing and quality capabilities, delivering precision solutions for the most demanding applications.

MANUFACTURING PROCESSES Swiss Machining Swiss machining, also known as Swiss screw machining or Swiss turning, is a highly precise manufacturing process commonly used to produce small, intricate, and high-quality components, including engineered fasteners. The Swiss Machining Process: 1. Workpiece and Guide Bushing: The process begins with a cylindrical bar of raw material (e.g., stainless steel, titanium, aluminum, or nickel alloys) fed through a guide bushing. The guide bushing holds the workpiece securely close to the cutting tool, minimizing deflection and vibration. 2. Sliding Headstock: Unlike traditional lathes, a Swiss machine’s headstock moves longitudinally, allowing the material to slide through the guide bushing. 3. Multi-Axis Machining: Swiss machines often have multiple axes (up to 12 or more), enabling simultaneous machining operations. This capability allows turning, drilling, threading, and milling in a single setup. 4. Tool Engagement: Tools operate close to the guide bushing, which increases accuracy and reduces the risk of distortion, especially for slender or long parts. 5. Continuous Bar Feeding: Automatic bar feeders allow for high-volume production with minimal operator intervention. 6. Post-Machining Operations: Once machined, parts may undergo heat treatment, coating, or secondary processes like polishing or engraving. Key Features of Swiss Machining: High Precision: Tolerances can reach as tight as ±0.0001 inches, making it suitable for critical components. Complex Geometries: Capable of producing intricate parts with multiple features in a single operation. Small Diameter Parts: Ideal for manufacturing components with small diameters, often below 1.25 inches. Advantages of Swiss Machining: Exceptional Accuracy: Ensures consistent quality for components requiring extreme precision. Efficiency: Multiple operations in a single setup reduce production time. Material Versatility: Works with a wide range of metals, including hard-to-machine alloys. Repeatability: High-volume production with consistent tolerances. Minimized Material Waste: Optimized processes reduce scrap material. Applications in Engineered Fasteners: Swiss machining is particularly valuable for producing high-performance fasteners and components, such as: Micro Screws and Bolts: Used in aerospace, robotics, and medical devices. Precision Nuts and Inserts: Manufactured with intricate threading and tolerances. Specialized Threaded Components: Used in turbomachinery and space applications. Custom Fasteners: Designed for specific applications requiring unique shapes, grooves, or threads. Thin and Slender Components: Ensures stability and precision for long, thin fasteners. Limitations Cost: Swiss machines and setups are more expensive than traditional lathes. Size Restrictions: Limited to parts with smaller diameters and lengths. Setup Time: Complex setups for multi-axis operations may increase initial production time. Cold Heading Hot Heading EDM Milling Turning Swiss Machining Drilling Roll Threading Cut Threading Broaching Heat Treatment Austenitizing Tempering Normalizing Stress Relieving Grinding Polishing Dot Peen Marking Laser Marking MANUFACTURING Explore our manufacturing capabilities OUR PRODUCTS Explore our products Specialty Engineered Fasteners Learn more about our Engineered Fasteners, precision-crafted for specialized and critical applications in diverse industries. Machined Parts Learn more about our custom-designed Machined Components expertly crafted for applications across a range of industries. Precision Shear Products Explore our shear product manufacturing and quality capabilities, delivering precision solutions for the most demanding applications. DOING WHATEVER IT TAKES Need product help or engineering support? Contact our team of fastener experts today CONTACT