S-92196A103 4-40 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 industrial environments
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Precise Class 3A thread fit ensuring tight, secure fastening with minimal backlash in critical assemblies
• Optimized hex drive design with 3/32" drive size providing high torque transmission and reduced cam-out risk
• Full thread engagement along the 1/8" length for maximum grip and uniform stress distribution
• Broad regulatory compliance meeting ASME B18.3, RoHS 3, and REACH standards for global industrial use
• Coarse UNC threading enabling quick installation and resistance to vibration loosening in dynamic applications

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 18-8 stainless steel socket head cap screws deliver exceptional performance where corrosion resistance and mechanical reliability are paramount. The 4-40 UNC coarse thread configuration provides superior vibration resistance in machinery, automotive, and electronic assemblies, while the Class 3A thread fit ensures precise alignment in tight-tolerance applications. The hex drive system allows for high-torque installation in confined spaces, making these socket head cap screws ideal for maintenance-critical equipment where accessibility is limited. With full threading along the entire 1/8" length, these fasteners distribute clamping forces evenly, preventing joint failure in high-stress environments.

Specification Summary & Compliance

This socket head cap screw features precise 4-40 UNC coarse threads with Class 3A fit per ASME B18.3 specifications, ensuring dimensional accuracy and interchangeability. Manufacturing complies with ASME B18.3 standards for socket head cap screws, with full adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The inch-system measurement provides compatibility with North American industrial specifications, while the right-hand thread direction and standard socket head profile maintain industry-standard installation practices.