S-90008A761 1/4"-20 x 1 1/2" ASME B18.3, ASTM F837 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with silver plating over 18-8 stainless steel, ideal for harsh environments and extended service life
• Superior electrical conductivity due to the silver plating, making it perfect for electrical and electronic assemblies
• High tensile strength of 70,000 psi ensures reliable performance under significant mechanical loads and vibrations
• Precise Class 3A thread fit provides excellent engagement and clamping force for secure, vibration-resistant connections
• Durable Rockwell B70 hardness offers excellent wear resistance and prevents stripping of the hex socket drive
• Broad regulatory compliance including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental standards are met for global projects
• Versatile partially threaded design allows for precise positioning and clamping in a wide range of industrial applications

Professional Applications & Engineering Value

This silver plated 18-8 stainless steel socket head cap screw is engineered to solve critical challenges in demanding sectors like aerospace, electronics, and precision machinery. The combination of a stainless steel core and silver plating delivers exceptional corrosion resistance while providing superior electrical conductivity, a necessity for grounding and EMI/RFI shielding applications. The UNC coarse thread and Class 3A fit ensure fast, reliable assembly and high vibration resistance, reducing maintenance and failure risks. Its hex drive and robust socket head profile allow for high torque application, making it a reliable industrial fastener for critical assemblies where performance and compliance cannot be compromised.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC coarse thread with a precise Class 3A thread fit and a minimum thread length of 1 inch. It is manufactured to meet the dimensional and mechanical specifications of ASME B18.3. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in environmentally conscious and regulated industries.