S-90696A171 5-40 x 1/8" ASME B18.3 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
• High tensile strength of 70,000 psi ensures dependable load-bearing capacity and resistance to mechanical stress in demanding applications.
• Precise Class 3A thread fit provides secure, vibration-resistant fastening with minimal risk of loosening.
• Hex socket drive design allows for easy installation and removal with standard tools, reducing assembly time.
• Full compliance with ASME B18.3, RoHS 3, and REACH guarantees adherence to industry standards and environmental safety regulations.
• Coarse UNC threading enables quick engagement and robust performance in various materials.
• Rockwell B70 hardness offers excellent durability and wear resistance for repeated use.

Professional Applications & Engineering Value

This 5-40 UNC Thread Socket Head Cap Screw is engineered from 18-8 Stainless Steel to address critical industrial challenges, such as corrosion in humid or chemical-exposed settings. Its Class 3A thread fit and coarse thread spacing ensure reliable fastening in high-vibration environments, reducing maintenance needs in machinery, automotive assemblies, and electronic enclosures. The hex drive socket head facilitates efficient installation in confined spaces, enhancing productivity. By combining high tensile strength and compliance with ASME B18.3, it delivers consistent performance for precision engineering applications, minimizing downtime and ensuring long-term operational integrity.

Specification Summary & Compliance

This screw features a 5-40 UNC thread with Class 3A fit for precise dimensional accuracy, manufactured in accordance with ASME B18.3 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability.