S-92423A531 1/4"-20 x 1/2" FF-S-86, NAS1352N4-8, SAE AMS5737 High-Strength A286 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional strength-to-weight ratio with 160,000 psi tensile and 120,000 psi yield strength for reliable performance in demanding applications
• Superior corrosion resistance thanks to A286 stainless steel material and passivated finish, extending service life in harsh environments
• Precision Class 3A thread fit ensures secure fastening with minimal backlash and consistent engagement in critical assemblies
• Heat-resistant properties of A286 alloy maintain mechanical integrity under elevated temperature conditions
• Standard hex drive compatibility with 3/16" drive size provides familiar, tool-friendly installation and removal
• Full threading along entire 1/2" length offers maximum adjustability and load distribution across the fastener
• Regulatory compliance assurance with RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

Engineered for high-performance industrial applications, these A286 stainless steel socket head cap screws deliver exceptional reliability in aerospace, automotive, and heavy machinery sectors. The combination of Class 3A UNRC coarse threads and passivated finish addresses critical challenges of vibration loosening and environmental degradation. With Rockwell C33 hardness and 160,000 psi tensile strength, these fasteners maintain clamping force under extreme mechanical stress and thermal cycling. The fully threaded design and standard hex drive simplify installation in confined spaces while providing uniform stress distribution. These socket head cap screws are particularly valuable in assemblies requiring repeated disassembly and reassembly without performance degradation.

Specification Summary & Compliance

This 1/4-20 socket head cap screw features precision Class 3A thread fit with UNRC coarse threads and right-hand thread direction. Manufactured to exacting standards including Fed. Spec. FF-S-86, NAS1352N4-8, and SAE AMS5737 specifications. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The fastener maintains dimensional accuracy with 3/8" head diameter, 1/4" head height, and 1/2" length throughout production.