S-92196A643 6-40 x 3/16" 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 reducing replacement frequency.
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration, minimizing failure risks.
• Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies in critical applications.
• Fine UNF thread design offers better adjustment control and improved load distribution compared to coarse threads.
• Hex socket drive (7/64") allows for high torque application and easy installation in confined spaces with standard tools.
• Full threading along the 3/16" length enables maximum grip and flexibility in positioning for varied assembly needs.
• Compliance with ASME B18.3, RoHS 3, and REACH guarantees industry-standard quality and environmental safety for global supply chains.

Professional Applications & Engineering Value

This 6-40 UNF socket head cap screw is engineered to address common industrial challenges such as corrosion-induced degradation and assembly instability. Crafted from 18-8 stainless steel, it provides excellent resistance to rust and chemicals, extending service life in demanding sectors like machinery, automotive, and electronics. The fine thread and Class 3A fit ensure minimal backlash and enhanced clamping force, crucial for precision equipment where vibration loosening is a concern. With a hex drive design, it facilitates efficient installation in tight spaces, reducing labor time and improving overall assembly reliability. Ideal for applications requiring high-strength, corrosion-resistant fasteners, this screw supports robust engineering solutions while meeting stringent regulatory standards.

Specification Summary & Compliance

This product features a 6-40 UNF fine thread with Class 3A thread fit for precise dimensional accuracy, ensuring consistent performance in assemblies. It adheres to the ASME B18.3 manufacturing standard, which governs socket head cap screw specifications for reliability. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for environmental and health standards in industrial use.