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 Wedge Tensile Testing A Wedge Tensile Test is a specialized variation of axial tensile testing designed specifically for threaded fasteners. By placing a hardened wedge under the head of a bolt during testing, additional bending stress is introduced. This simulates worst-case service conditions where the fastener may be misaligned or subjected to uneven loading. The test measures how well the fastener maintains tensile strength and integrity under this combined stress, making it a critical evaluation for safety-critical applications. How the Test is Performed Specimen Setup – A bolt or fastener is mounted in a tensile testing machine with a hardened wedge placed under its head. Load Application – A controlled axial tensile load is applied while the wedge creates an added bending stress. Monitoring – The fastener is pulled until failure or until a specified load requirement is reached. Observation – The type of failure (thread stripping, head fracture, shank break, etc.) is carefully documented. Result Analysis – Data is compared against design and industry standards to ensure compliance. Why It is Performed The wedge tensile test is performed to confirm that fasteners can withstand tensile and bending stresses simultaneously , ensuring reliability even in less-than-ideal installation or service conditions. Verifies overall tensile strength in a simulated worst-case scenario Detects weaknesses such as improper heat treatment or material flaws Ensures fasteners won’t fail unexpectedly due to misalignment or uneven load Provides added assurance of performance in critical, real-world applications Application to Engineered Fasteners Engineered fasteners used in industries such as aerospace, nuclear, oil & gas, and defense often face complex loading conditions. The wedge tensile test ensures that: Bolt heads and shanks can resist combined stresses without premature failure Thread integrity and material toughness meet customer and industry requirements Fasteners maintain reliability in high-stakes environments where safety is paramount Manufacturing processes and heat treatments are validated through destructive verification Standards & Compliance At TSP Manufacturing, wedge tensile testing is conducted in compliance with ASTM, ISO, and customer-driven specifications . All equipment is calibrated to industry requirements, and tests are performed by trained professionals to ensure accuracy, repeatability, and traceability. By strictly adhering to these standards, we provide our customers with confidence that our engineered fasteners can withstand even the most demanding service conditions. 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 Hot Heading Hot heading is a manufacturing process used to produce engineered fasteners and components, especially when working with materials that are hard to deform at room temperature. The Hot Heading Process: 1. Material Heating: The metal is heated to a temperature at which it becomes malleable, typically below its melting point. Heating is performed using furnaces, induction heaters, or other methods, depending on the material type (e.g., titanium, nickel alloys). 2. Forming: The heated material is placed into a die and deformed by applying force through a punch. The heat allows the material to flow more easily, making it suitable for forming complex shapes or working with harder metals. 3. Multi-Stage Forming (Optional): Similar to cold heading, multiple stages of deformation may be required for intricate geometries. 4. Post-Process Treatments: The component may undergo further processes such as trimming, threading, heat treatment, or surface finishing to meet final specifications. Advantages of Hot Heading: Material Versatility: Enables forming of high-strength, low-ductility metals like titanium, nickel alloys, and certain stainless steels that are difficult to work with at room temperature. Enhanced Shape Complexity: Allows for the production of parts with complex geometries that cannot be achieved through cold heading alone. Improved Grain Structure: The process can refine the grain structure of the material, enhancing mechanical properties. Applications in Engineered Fasteners: Hot heading is often chosen for fasteners and components that require: Extreme Strength and Durability: Used in aerospace, nuclear, and defense applications where high-performance materials are critical. Corrosion Resistance: Suitable for marine and offshore environments where exposure to saltwater and harsh conditions is a concern. High-Temperature Performance: Ideal for turbomachinery or automotive applications where fasteners must endure elevated temperatures. 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 Proof Load Testing A Proof Load Test is a non-destructive mechanical test performed on fasteners to verify that they can safely withstand a specified tensile load without permanent deformation. This test ensures that the fastener meets the strength requirements set by design specifications and industry standards, providing confidence that it will perform reliably under service conditions. How the Test is Performed Specimen Preparation – The fastener is cleaned and mounted in a tensile testing machine. Load Application – A controlled tensile load, typically a percentage of the fastener’s yield strength, is applied along the fastener’s axis. Observation – The fastener is monitored to ensure it does not deform permanently under the applied load. Load Removal – After the specified load is applied and held briefly, it is removed, and the fastener is checked for any signs of permanent elongation or failure. Documentation – Results are recorded to confirm compliance with specifications and traceability for quality assurance. Why It is Performed Proof Load Testing is performed to ensure that fasteners meet their rated strength and can handle service loads safely. By verifying the ability to withstand a specified load without yielding, TSP Manufacturing helps prevent premature failure in critical assemblies. Confirms fasteners meet tensile strength requirements Ensures no permanent deformation under design loads Validates manufacturing and heat-treatment processes Enhances safety and reliability in demanding applications Application to Engineered Fasteners Engineered fasteners are often used in high-stress, safety-critical environments such as aerospace, oil & gas, nuclear, and defense industries. Proof Load Testing ensures that: Fasteners can carry design loads safely without yielding Material and processing integrity are verified Joint reliability and assembly safety are maintained Customer confidence is provided through verified mechanical performance Standards & Compliance At TSP Manufacturing, Proof Load Testing is conducted in accordance with ASTM, ISO, and customer-specific standards . Testing equipment is calibrated regularly, and procedures are performed by trained personnel to ensure consistent, accurate, and traceable results. Compliance with these recognized standards demonstrates our commitment to producing engineered fasteners and machined components that meet the highest levels of quality and reliability. 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 Broaching Broaching is a machining process used in the production of engineered fasteners and components to create precise internal or external features, such as keyways, splines, slots, or specific profiles. It involves a toothed cutting tool, called a broach, which removes material in a single pass, creating highly accurate shapes with excellent surface finishes. The Broaching Process: 1. Setup: The workpiece (e.g., a fastener or component) is securely clamped or held in a fixture to ensure stability during the broaching process. 2. Tool Design: The broach is a multi-tooth cutting tool with a progressively larger cutting profile. Each tooth removes a small amount of material, gradually shaping the workpiece. 3. Cutting Motion: The broach is either pushed or pulled through or across the workpiece. The motion can be linear (common in most broaching) or rotary, depending on the feature being produced. 4. Material Removal: Each tooth of the broach removes a layer of material, with the last tooth producing the final dimension and surface finish. 5. Completion: The polished component is cleaned again to remove any residue from the polishing compounds. Types of Broaching: 1. Internal Broaching: Used to machine internal features, such as keyways, splines, or hexagonal holes. Common in fasteners like socket-head screws, where precision internal profiles are critical. 2. External Broaching: Used to shape external surfaces, such as flat edges, splines, or gear teeth. Suitable for components like drive shafts or splined bolts. 3. Rotary Broaching: Produces internal or external features with rotational symmetry, such as hexagonal or square recesses. Frequently used for hex socket bolts and other specialty fasteners. 4. Surface Broaching: Removes material from a flat or contoured surface. Can be used to create complex geometries or profiles on fastener heads. Example of Broaching in Practice: Material: Stainless steel fastener. Pre-Polishing Steps: Hexagonal socket for an Allen wrench. Process: The fastener blank is positioned on the broaching machine. A hexagonal broach is pushed through the pre-drilled hole in a single pass. The finished socket has precise dimensions and a smooth finish. Outcome: The fastener is ready for use in applications requiring precision assembly and reliable torque transmission. Advantages of Broaching for Fasteners: High Precision: Achieves tight tolerances and accurate dimensions, critical for fastener performance. Excellent Surface Finish: Provides smooth finishes, often eliminating the need for secondary finishing. Efficiency: Produces complex shapes in a single pass, reducing cycle times. Versatility: Capable of creating a wide variety of internal and external profiles. Consistency: Ideal for high-volume production, ensuring uniformity across multiple components. Applications in Engineered Fasteners: Socket-Head Cap Screws: Internal broaching is used to form the hexagonal socket for Allen keys. Spline Bolts: External broaching creates the spline profiles required for high-torque applications. Custom Profiles: Produces unique head shapes or recesses for tamper-resistant fasteners. Precision Keyways: Internal broaching machines keyways in fasteners or components used in assembly with shafts or couplings. Challenges in Broaching: Tool Wear: Broaches are subject to wear and require periodic sharpening or replacement. Initial Cost: Custom broaches can be expensive to design and manufacture. Material Limitations: Hard or tough materials may require specialized broaches and equipment, increasing complexity. Setup Time: Preparing the machine and aligning the workpiece can be time-intensive for small production runs. Why Broaching is Essential: Broaching is indispensable in manufacturing engineered fasteners and components that demand high precision, repeatability, and complex profiles. Its ability to produce intricate shapes efficiently makes it a vital process for industries requiring advanced fasteners, from aerospace to medical and beyond. 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

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

Learn how TSP Manufacturing upholds the highest quality standards with rigorous testing, certifications, and a commitment to precision in every fastener we produce. SERVICING THE CUSTOMER Our Quality Our Quality Assurance TSP Manufacturing provides Quality Control through our fully implemented ISO 9001:2015 Quality Management System and A2LA 17025 accredited testing laboratory. TESTING PROCEDURES Explore our testing capabilities Non-Destructive Examination (NDE) Liquid Penetrant Test (LPT) Ultrasonic Test (UT) Magnetic Particle Test (MT) Eddy Current Test Dimensional Inspection Digital Optical Comparator Adjustable Ring Gauge Plug Gauge Mechanical Testing Hardness Test Shear Test Slow Strain Tensile Test Creep Test Axial Tensile Test Wedge Tensile Test Proof Load Test Breaking Torque Test Charpy Test Metallographic & Chemistry Testing Positive Material Identification (PMI) Spectrographic Product Analysis X-Ray Cleanliness Test Macrostructure Microstructure Grain Size OUR QUALITY API 20E Certification API 20E-0005 VIEW The API 20E certification is a standard developed by the American Petroleum Institute (API) that specifies the requirements for the qualification, production, and documentation of alloy and carbon steel bolting materials used in the petroleum and natural gas industries. This certification ensures that bolting materials meet stringent quality and performance criteria, including material traceability, manufacturing processes, and testing protocols. It is particularly focused on bolting used in critical applications where safety, reliability, and compliance are essential. Companies achieving this certification demonstrate adherence to industry best practices for producing high-quality bolting components. API 20F Certification API 20F-0005 VIEW The API 20F certification is a standard issued by the American Petroleum Institute (API) that defines the requirements for the manufacturing, qualification, and documentation of corrosion-resistant bolting materials for use in the petroleum, petrochemical, and natural gas industries. It ensures that bolting materials, such as those made from stainless steel and nickel alloys, meet rigorous standards for performance, reliability, and resistance to corrosive environments. This certification covers aspects like material traceability, heat treatment, mechanical testing, and quality control processes. Achieving API 20F certification signifies compliance with industry best practices for producing bolting suitable for critical applications. Q1 9th Edition Registered Q1 - 2200 VIEW The API Q1 Registered certification is a quality management standard developed by the American Petroleum Institute (API) specifically for organizations that manufacture products or provide services for the petroleum and natural gas industries. It establishes stringent requirements for quality management systems, focusing on product reliability, risk management, and process efficiency. API Q1 certification emphasizes key elements such as management responsibility, operational controls, supplier management, and continuous improvement. Companies holding this certification demonstrate their commitment to meeting industry-specific quality standards, ensuring consistent product and service performance in critical energy sector applications. ISO 9001:2015 Registered ISO 9001 - 2298 VIEW The API QMS Registered certification signifies that an organization has implemented a robust Quality Management System (QMS) meeting API's specific requirements for the petroleum, natural gas, and petrochemical industries. This certification ensures compliance with recognized standards, such as API Spec Q1 or API Spec Q2, depending on the organization's operations. It emphasizes quality control, risk management, process efficiency, and continual improvement. Holding API QMS certification demonstrates a company's commitment to delivering reliable products and services while adhering to the highest industry standards for quality and operational excellence. ISO 17025:2017 Accredited 0929.01 VIEW The A2LA Accreditation certificate is issued by the American Association for Laboratory Accreditation (A2LA), a globally recognized organization that provides accreditation services to testing and calibration laboratories, inspection bodies, proficiency testing providers, and product certification bodies. This accreditation demonstrates that an organization meets international standards, such as ISO/IEC 17025 for laboratories or ISO/IEC 17020 for inspection bodies, ensuring technical competence, reliable results, and adherence to best practices. The A2LA accreditation is a mark of excellence that assures customers and stakeholders of the quality, integrity, and accuracy of an organization's testing or certification services. OUR LABORATORY TSP Manufacturing + WN Global Laboratory In collaboration with our parent company, TSP Manufacturing has exclusive access to in-house A2LA 17025 accredited laboratory capabilities through the WN Global Laboratory. Get a quote for your upcoming project CONTACT

TSP Mfg. is a Supply Chain Integrator, specializing in Specialty Engineered Fasteners and Precision Machined Components for Critical Industry. Supplying Engineered Fasteners for Over 87 Years We are a Supply Chain Integrator, specializing in Engineered Fasteners and Precision Machining for Critical Industry. VIEW PRODUCTS Search OUR QUALITY API 20E Certification API 20E-0005 API 20F Certification API 20F-0005 Q1 9th Edition Registered Q1 - 2200 ISO 9001:2015 Registered ISO 9001 - 2298 ISO 17025:2017 Accredited 0929.01 ABOUT About TSP Manufacturing TSP Manufacturing is a premier producer of specialty engineered fasteners, precision machine parts, shear product and a comprehensive supply chain integrator to OEM’s in a range of critical industries. We manufacture and distribute products of the highest quality with world-class customer service to ensure a lower total cost of procurement. LEARN MORE OUR PRODUCTS Explore our products LEARN MORE Specialty Engineered Fasteners Machined Components Precision Shear Products Valve Stems OUR SERVICES Explore our services LEARN MORE Technical / Support Services Supply Chain Solutions SUPPLY CHAIN SERVICES Intelligent Inventory Management Our Intelligent Inventory Management program seamlessly automates fastener supply chain, leveraging commercial RFID technology with a user-friendly web interface to exchange real-time data between the supplier & the customer on inventory status LEARN MORE INDUSTRIES WE SERVE Oil & Gas Turbomachinery Marine and Offshore Nuclear Aerospace Robotics and Automation Defense Space Get a quote for your upcoming project CONTACT

John Warren Chief Executive Officer, WN Global BIO John Warren is Chief Executive Officer of WN Global, where he leads the company toward a clear vision: to be the partner of choice for critical fasteners in mission-critical energy and aerospace applications, uniting world-class manufacturing with smart, integrated supply-chain solutions. That vision guides WN Global's work across oil & gas, turbomachinery, nuclear, defense and aerospace. With more than 35 years of international leadership experience spanning the United States, West Africa, Scandinavia, and Australasia, John has built a reputation for transforming organizations and strengthening commercial performance — aligning engineered products with the rigorous technical and compliance standards required by customers who design, build, and operate equipment in the world's most demanding environments. Before joining WN Global, John served as Senior Business Development Manager for a major international oilfield services manufacturer, where he strengthened the company's market position and expanded commercial opportunities across Australia, New Zealand, and Papua New Guinea. His success building partnerships with key operators in these regions reflected both his commercial acumen and his ability to position engineered solutions to meet evolving market and regulatory requirements. John began his career as a mechanical engineer, a foundation that continues to define his leadership approach. His progression through roles in engineering, sales, operations, technology, and business development has given him a rare combination of technical rigor and commercial insight — an asset in an industry where performance, reliability, and safety standards are non-negotiable. He excels at aligning manufacturing capability with customer expectations around quality, traceability, compliance, and delivery performance. Throughout his career, John has been an active contributor to industry thought leadership. He has authored / co-authored multiple technical papers and holds several U.S. patents for innovations that have advanced performance and safety in energy-sector applications. John is guided by a simple conviction: that disciplined operations and uncompromising quality are what earn the trust of customers whose equipment cannot afford to fail — the same standard that drives WN Global's vision of being the partner of choice for the industries it serves. BACK

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.

Explore TSP Manufacturing's journey through our company timeline and meet the expert team driving innovation, quality, and precision in engineered fasteners. CELEBRATING OVER 87 YEARS About Us 1991 TSP’s sister company U.S. Bolt Manufacturing is launched 1994 TSP integrates Supply Chain agreement with Fortune 500 Original Equipment Manufacturer History of our timline 1938 Texas Screw Products (TSP) begins as a Full Line Distributor just north of Downtown Houston 1986 TSP is purchased and brought under the leadership of Walter Negley OUR TEAM John Warren Chief Executive Officer, WN Global Christopher Smith General Manager Alex Dundas Operational Research Engineer Norberto Diaz Engineering Manager OUR TEAM Travis Arbing Purchasing Manager Bill Arnold Sales Manager Sandra Aguilar Sales Manager Mirla Fonseca Sales Manager Randy Boatright Accounting Manager Get a quote for your upcoming project CONTACT 1997 TSP becomes ISO 9002-1994 registered 1998 TSP’s laboratory becomes accredited to ISO 17025 OUR TEAM Esvin Gomez Quality Manager Jesus Martinez Quality Control Supervisor Veronica Garcia Quality Assurance Supervisor Jose Medina Warehouse Supervisor 2008 TSP moves to its new location on West 12th Street, Houston Texas 2018 TSP becomes TSP Mfg., a WN Global Company, strengthening its relationship with sister company U.S. Bolt and enhancing the value delivered to the customer 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. Valve Stems Learn more about our Engineered Valve Stems, designed for demanding applications requiring exceptional strength, durability, and precision. EXCELLENCE IN MANUFACTURING Quality, Materials, and Engineering Solutions Quality Learn more about how we deliver the highest Quality Engineered Fasteners & Components for custom-designed products Materials Learn more about our manufacturing material capabilities for our Engineered Fasteners & Components Services Learn more about our product support and supply chain solutions for our customers Engineered Fastener & Components

SERVICING THE CUSTOMER Oil & Gas Home / Industries / Oil & Gas / Industry Overview Engineered fasteners and components used in the oil & gas industry are critical to ensuring safety, reliability, and efficiency in highly demanding environments. These components are often subject to extreme pressures, temperatures, and corrosive environments, making their design and material selection essential. KEY FEATURES High Strength: Engineered fasteners must handle high loads and stresses, especially in deep-sea or high-pressure drilling environments. Corrosion Resistance: Materials are selected for resistance to harsh conditions, including saltwater, hydrogen sulfide, and other corrosive agents found in drilling and production environments. Extreme Temperature Tolerance: Fasteners are designed to perform reliably under extreme heat or cold. Precision: Tight tolerances ensure a secure fit and minimize risks of failure during operation. WHEN ONLY THE BEST WILL DO Common Applications: Offshore and Subsea Operations: Used in risers, blowout preventers, and subsea trees. Drilling and Exploration Equipment: Fasteners in drill bits, drill string tools, and rigs. Completion and Production Equipment: A range of precisions parts from valve stems to fasteners used in electrical submersible pumps. Pipeline Infrastructure: High-performance nuts and bolts for flange connections in oil and gas pipelines. Refineries and Processing Facilities: Critical components in reactors, heat exchangers, and pressure vessels. Materials: Materials used in engineered fasteners for the oil & gas industry include: Alloy Steels: Known for strength and durability under high stress. Nickel Alloys: Excellent for high temperatures and corrosive environments. Stainless Steel: Offers good corrosion resistance and strength. Titanium: Lightweight and resistant to corrosion, ideal for specialized applications. MP35N: A nickel-cobalt alloy with superior strength and corrosion resistance in sour gas environments. Industry Standards: Engineered fasteners in oil & gas must comply with stringent industry standards, including: API Standards (e.g., API 20E/API 20F for critical application fasteners, API 6A for wellhead and tree equipment). API Q1 for quality management in the petroleum and natural gas industries. AMPP MR0175/ISO 15156 for materials used in sour gas conditions. ASME Standards for pressure vessel and piping applications. The TSP Manufacturing Advantage TSP Manufacturing specializes in providing custom-engineered fasteners designed for critical applications in the oil & gas sector. Our fasteners deliver exceptional reliability to minimize downtime, with customized solutions to meet specific project requirements, and compliance with all relevant industry regulations and standards. 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. Valve Stems Learn more about our Engineered Valve Stems, designed for demanding applications requiring exceptional strength, durability, and precision. DOING WHATEVER IT TAKES Need product help or engineering support? Contact our team of fastener experts today CONTACT Get a quote for your upcoming project CONTACT