S-90289A193 8-32 x 7/16" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating for extended service life in demanding industrial environments
• Exceptional holding power through serrated locking mechanism that prevents rotational slippage under vibration
• Precision Class 3A thread fit ensures consistent engagement and reliable fastening in critical applications
• High-strength alloy steel construction with Rockwell C45 hardness maintains integrity under heavy mechanical stress
• Space-saving headless design with 5/64" hex drive allows installation in confined spaces while providing secure tool engagement
• Cup tip configuration creates positive seating and minimizes surface damage to secured components
• Industry compliance assurance with ASME B18.3 standards and environmental regulations for global project acceptance

Professional Applications & Engineering Value

This 8-32 UNC set screw delivers critical engineering solutions where vibration resistance and precision alignment are paramount. The black-oxide alloy steel construction combined with Rockwell C45 hardness provides exceptional durability against wear and environmental exposure. The serrations locking mechanism actively prevents loosening in high-vibration applications such as motor mounts, machinery assemblies, and precision equipment. The coarse UNC thread with Class 3A fit ensures rapid installation while maintaining precise tolerances. The headless hex drive design with 5/64" drive size enables installation in space-constrained applications without compromising torque transmission. Ideal for securing collars, gears, and pulleys where reliable positioning is critical to operational safety and performance.

Specification Summary & Compliance

This precision fastener features 8-32 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy. Manufactured to ASME B18.3 specifications ensuring consistent quality and performance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting international environmental standards for hazardous substance restrictions. The right-hand thread direction and 7/16" length provide standardized installation compatibility across industrial applications.