S-90696A194 1/4"-28 x 6" ASME B18.3 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Superior thread engagement and vibration resistance due to Class 3A fit and UNF fine threads
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads
• Enhanced durability and wear resistance provided by Rockwell B70 hardness
• Secure and precise installation with 3/16" hex drive and standard socket head profile
• Optimized for partial-thread applications with 1" minimum thread length on a 6" shank
• Compliance with major industrial standards including ASME B18.3, RoHS 3, and REACH

Professional Applications & Engineering Value

This 18-8 stainless steel socket head cap screw delivers critical performance in demanding applications where corrosion resistance and mechanical strength are paramount. The 1/4"-28 UNF fine thread with Class 3A fit provides superior vibration resistance and precise clamping force in machinery, automotive assemblies, and precision equipment. The partially threaded design allows for unthreaded shank sections to act as precision dowels or pivots, while the hex drive ensures high torque application without slippage. With 70,000 psi tensile strength and Rockwell B70 hardness, it withstands repetitive stress and harsh operating conditions, making it ideal for manufacturing, aerospace, and marine applications where fastener failure is not an option.

Specification Summary & Compliance

This socket head cap screw features precise Class 3A thread fit according to UNF standards, ensuring tight tolerances for critical assemblies. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and performance. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for industrial use worldwide.