S-92196A117 4-40 x 1 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 tensile strength rated at 70,000 psi for reliable performance in high-stress applications
• Precise Class 3A thread fit ensures secure fastening with minimal vibration loosening
• Optimized hex drive engagement with 3/32" drive size for maximum torque transmission
• Enhanced durability with Rockwell B70 hardness for long service life
• Versatile partial threading allows for both clamping and alignment functions
• Full regulatory compliance meeting ASME B18.3, RoHS 3, and REACH standards

Professional Applications & Engineering Value

These 18-8 stainless steel socket head cap screws deliver critical performance advantages in demanding industrial settings. The 4-40 UNC coarse thread configuration provides excellent engagement in various materials while the 3/32" hex drive ensures secure tool engagement during high-torque installation. Engineered with Class 3A thread fit, these fasteners maintain precise tolerances for vibration-resistant assemblies in machinery, automotive, and electronic enclosures. The partially threaded design offers flexibility for applications requiring both clamping force and alignment capabilities, while the corrosion-resistant properties of 18-8 stainless steel ensure long-term reliability in challenging environments.

Specification Summary & Compliance

Manufactured to exacting ASME B18.3 standards with Class 3A thread fit precision and UNC coarse thread profile. Features include 4-40 thread size, 1-1/8" length, 3/4" minimum thread length, and right-hand thread direction. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial applications while maintaining 70,000 psi tensile strength and Rockwell B70 hardness specifications.