S-90344A110 8-32 x 1/2" ASME B18.3, ASTM A574 Socket Head Screws with Flat Washer

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating on both screw and washer, extending service life in demanding environments
• Exceptional load-bearing capability with 170,000 psi tensile strength and Rockwell C39 hardness for high-stress applications
• Precise thread engagement with Class 3A fit and UNC coarse threads ensuring reliable fastening in industrial assemblies
• Integrated flat washer design distributes clamping force evenly, preventing surface damage and maintaining joint integrity
• Standard hex drive compatibility with 9/64" drive size for efficient installation using common industrial tools
• Full thread coverage along the 1/2" length provides maximum grip and adjustment flexibility
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for global industrial use

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these black-oxide alloy steel socket head cap screws deliver exceptional performance in machinery, equipment manufacturing, and precision assemblies. The UNC coarse thread configuration combined with Class 3A thread fit ensures rapid installation and reliable holding power in vibration-prone environments. The integrated flat washer eliminates the need for separate components while providing superior surface protection and load distribution. With 170,000 psi tensile strength and corrosion-resistant black-oxide finish, these fasteners solve critical challenges in maintenance-heavy operations where durability and consistent performance are paramount. The hex socket drive design allows for high-torque applications in confined spaces common in industrial equipment and automation systems.

Specification Summary & Compliance

This 8-32 UNC thread socket head cap screw features precise Class 3A thread fit with coarse thread spacing and full threading along the 1/2" length. Manufactured to ASME B18.3 specifications using ASTM A574 material standards, ensuring dimensional accuracy and mechanical consistency. The assembly includes a matching black-oxide steel flat washer (3/8" OD, 0.032" thickness). Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, making these fasteners suitable for global industrial distribution and environmentally conscious manufacturing operations.