S-92695A621 8-32 x 5/16" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating on alloy steel, extending service life in demanding industrial environments
• Maximum holding power achieved through Class 3A thread fit precision, ensuring vibration-resistant fastening in critical assemblies
• Enhanced material durability with Rockwell C45 hardness, providing excellent wear resistance and deformation prevention
• Deep penetration grip from 90° cone point design, creating secure locking action on shafts and rotating components
• Space-saving installation with headless construction, ideal for compact assemblies where protruding fasteners aren't feasible
• Quick installation and removal using standard 5/64" hex drive, compatible with common industrial tools
• Reliable performance backed by ASME B18.3 and ASTM F912 compliance, ensuring consistent quality and dimensional accuracy

Professional Applications & Engineering Value

This 8-32 UNC set screw delivers exceptional engineering value in precision mechanical systems where vibration resistance and permanent positioning are critical. The black-oxide alloy steel construction combined with Class 3A thread fit addresses common industrial challenges of component slippage and loosening under dynamic loads. The 90° cone point aggressively bites into mating surfaces, creating permanent seating in pulley systems, gear assemblies, and shaft collars. The coarse UNC thread spacing provides rapid installation while maintaining high tensile strength, making it ideal for production environments requiring both speed and reliability. Its headless design solves space constraints in compact machinery while the hex drive ensures secure tool engagement during torque application.

Specification Summary & Compliance

This precision fastener features 8-32 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy and tight tolerances. Manufacturing complies with ASME B18.3 specifications and ASTM F912 standards for consistent performance. The product meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) compliance regarding chemical safety, ensuring environmental responsibility in industrial applications.