S-92196A137 6-40 x 1/2" ASME B18.3, ASTM F837 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 70,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
• Superior corrosion resistance from 18-8 stainless steel construction provides long-lasting durability in harsh industrial environments.
• Precise Class 3A thread fit guarantees tight, secure connections with minimal backlash for vibration-resistant assemblies.
• Fine 6-40 UNF threading offers improved load distribution and superior holding power compared to coarse threads.
• Hex socket drive design with 7/64" drive size allows for high-torque installation and removal in confined spaces.
• Rockwell B70 hardness rating maintains thread integrity and drive socket shape through repeated use.
• Full threading along the 1/2" length provides maximum adjustment flexibility and consistent clamping force.

Professional Applications & Engineering Value

This 18-8 stainless steel socket head cap screw delivers critical performance advantages for demanding industrial applications where corrosion resistance and mechanical strength are paramount. The 6-40 UNF fine thread configuration provides superior resistance to vibration loosening while enabling precise tension control in compact assemblies. Engineered with Class 3A thread fit tolerances, these fasteners eliminate play in precision equipment, machinery, and aerospace components where dimensional stability is essential. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures reliable performance in high-stress applications while the corrosion-resistant properties of 18-8 stainless steel make these socket head screws ideal for chemical processing, marine environments, and food processing equipment where exposure to moisture and corrosive agents is common.

Specification Summary & Compliance

Manufactured to exacting ASME B18.3 specifications with Class 3A thread fit precision for superior dimensional accuracy. This 6-40 UNF thread socket head cap screw features right-hand threading direction and standard socket head profile. The fastener is fully compliant with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) requirements, ensuring environmental responsibility and workplace safety. Meeting ASTM F837 material standards, this industrial-grade socket head screw provides reliable performance across various engineering applications.