S-95289A121 8-32 x 3/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments
• Exceptional thread engagement due to Class 3A thread fit, ensuring secure fastening and vibration resistance
• High mechanical strength with Rockwell B80 hardness, providing reliable performance under heavy loads
• Enhanced grip and positioning from the extended tip design, preventing component slippage
• Easy installation and removal using standard 5/64" hex tools, reducing assembly time
• Wide industrial compatibility with UNC coarse threads and 8-32 size, fitting common machinery components
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for global applications

Professional Applications & Engineering Value

This 8-32 UNC set screw delivers critical engineering value in applications requiring precise component positioning and secure fastening. The 18-8 stainless steel construction provides excellent corrosion resistance, making it suitable for manufacturing equipment, automotive assemblies, and outdoor machinery exposed to moisture. The hex headless design with extended tip ensures maximum contact surface, preventing shaft slippage in pulley systems, gear assemblies, and coupling applications. With Class 3A thread fit and coarse UNC threads, it maintains reliable performance in high-vibration environments where fine threads might loosen. The combination of Rockwell B80 hardness and precise dimensional tolerances makes this industrial set screw ideal for repetitive assembly operations requiring consistent torque values and long-term reliability.

Specification Summary & Compliance

This precision fastener maintains Class 3A thread fit tolerances per ASME B18.3 specifications, ensuring consistent thread engagement. The manufacturing process adheres to UNC thread standards with 8-32 size and coarse thread spacing for optimal performance. Tip dimensions are controlled within tight tolerances (tip diameter: -0.006" to 0", tip length: -0.005" to 0") for precise application. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting international environmental and safety standards for industrial components.