S-90008A251 2-56 x 3/8" 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 for extended service life in harsh environments
• Exceptional mechanical strength delivering 70,000 psi tensile strength to withstand high-stress applications
• Precision thread engagement with Class 3A UNC coarse threads ensuring reliable, vibration-resistant connections
• Optimized torque transmission through 5/64" hex drive design for secure installation without stripping
• Enhanced durability with Rockwell B70 hardness maintaining structural integrity under repeated use
• Broad regulatory compliance meeting ASME B18.3, RoHS 3, and REACH standards for global acceptance
• Versatile installation capability with fully threaded design providing consistent clamping force along entire length

Professional Applications & Engineering Value

This silver-plated 18-8 stainless steel socket head cap screw addresses critical engineering challenges in precision assemblies where corrosion resistance and high strength are paramount. The 2-56 UNC coarse thread configuration combined with Class 3A thread fit ensures rapid installation and superior vibration resistance in compact spaces, making it ideal for aerospace components, medical devices, and electronic enclosures. The hex drive socket head design enables high-torque application without cam-out, while the silver plating enhances electrical conductivity and provides additional corrosion protection beyond the inherent properties of 18-8 stainless steel. This combination solves common fastener failure points in demanding industrial environments.

Specification Summary & Compliance

Manufactured to exacting ASME B18.3 specifications with precision Class 3A thread fit and UNC coarse thread profile. The fastener maintains dimensional accuracy with 2-56 thread size, 3/8" length, and standard socket head profile. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility, while the material certification to ASTM F837 standards guarantees consistent mechanical properties including 70,000 psi tensile strength and Rockwell B70 hardness.