S-91381A672 6-32 x 1/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating on alloy steel for extended service life in demanding environments
• Exceptional thread engagement with Class 3A fit ensuring precise, vibration-resistant fastening in critical assemblies
• Non-marring secure fastening through integrated brass soft tip that protects sensitive surfaces while maintaining strong grip
• High torque capability with hex drive design and Rockwell C28 hardness for reliable installation without stripping
• Optimized for industrial applications featuring coarse UNC threads for quick assembly and disassembly in maintenance operations
• Regulatory compliance assurance meeting ASME B18.3 specifications and environmental standards including RoHS 3 and REACH
• Space-saving headless design allowing flush mounting in confined spaces where protruding fasteners aren't feasible

Professional Applications & Engineering Value

This 6-32 UNC thread set screw delivers exceptional engineering value through its specialized black-oxide alloy steel construction and brass soft tip design. The combination addresses common industrial challenges including component slippage, surface damage, and corrosion in precision machinery. The Class 3A thread fit provides superior vibration resistance in dynamic applications, while the coarse thread spacing ensures rapid installation in production environments. Engineered for industrial set screw applications requiring reliable positioning of gears, pulleys, and collars, this fastener maintains consistent clamping force without damaging shaft surfaces. The hex drive style accommodates standard tools for efficient maintenance cycles, making it ideal for manufacturing equipment, automotive assemblies, and precision instruments where headless fasteners are specified for space-constrained designs.

Specification Summary & Compliance

This precision fastener maintains Class 3A thread fit tolerances per UNC standards with 6-32 thread size and 1/8" length. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and performance. The product meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations regarding chemical safety. Material certification includes Rockwell C28 hardness verification for consistent mechanical properties across production batches.