S-90008A841 8-32 x 5/8" ASME B18.3, ASTM F837 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with silver-plated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Precise thread engagement through Class 3A fit UNC coarse threads, ensuring secure fastening and vibration resistance
• Optimized drive efficiency with standard hex socket head and 9/64" drive size for easy installation in confined spaces
• Full thread coverage along the 5/8" length provides maximum grip and uniform stress distribution
• Regulatory compliance assurance meeting ASME B18.3, ASTM F837, RoHS 3, and REACH standards for global industrial applications
• Enhanced durability through right-hand coarse threading that resists loosening under dynamic loading conditions

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these silver-plated 18-8 stainless steel socket head cap screws deliver exceptional performance where corrosion resistance and mechanical reliability are critical. The 8-32 UNC coarse thread configuration with Class 3A precision fit ensures secure fastening in vibration-prone applications, from heavy machinery to precision equipment assemblies. The combination of 70,000 psi tensile strength and Rockwell B70 hardness provides structural integrity under sustained loads, while the hex drive socket design allows for high-torque installation in space-constrained applications. These industrial fasteners are particularly valuable in chemical processing, marine equipment, and food processing machinery where both corrosion resistance and regulatory compliance are mandatory.

Specification Summary & Compliance

This socket head cap screw features 8-32 UNC coarse threads with Class 3A thread fit precision, manufactured to ASME B18.3 specifications and ASTM F837 material standards. The fastener maintains dimensional accuracy with 0.164" thread diameter and 5/8" length, ensuring consistent performance across industrial applications. Compliance is verified with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming adherence to the latest international standards for hazardous substance restrictions.