S-91375A195 6-32 x 7/16" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating, extending service life in demanding industrial environments
• Exceptional holding power from Rockwell C45 hardness, preventing deformation under high torque applications
• Precise installation control with Class 3A thread fit, ensuring secure fastening without cross-threading
• Maximum torque transmission through 1/16" hex drive, allowing reliable tightening in confined spaces
• Enhanced grip security from cup point design, creating permanent positioning on shafts and components
• Space-saving headless construction ideal for applications where protruding fasteners are not feasible
• Reliable coarse threading (UNC) for quicker installation and reduced susceptibility to clogging in dirty environments

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers critical engineering solutions for industrial maintenance and manufacturing applications. The 6-32 UNC coarse thread configuration combined with Class 3A thread fit provides exceptional resistance to vibration loosening in machinery, automotive components, and precision equipment. The cup point design bites deeply into mating surfaces, creating permanent positioning for gears, pulleys, and collars on shafts. The headless construction with 1/16" hex drive enables installation in tight spaces where conventional fasteners cannot be used. Manufactured to ASME B18.3 specifications, these set screws maintain dimensional consistency across production runs, ensuring reliable performance in high-stress applications where failure is not an option.

Specification Summary & Compliance

This precision set screw features 6-32 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy and installation reliability. The fastener meets ASME B18.3 manufacturing specifications where applicable per ASTM F912 requirements. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and workplace safety. The black-oxide surface treatment on alloy steel substrate provides consistent corrosion protection while maintaining the Rockwell C45 hardness required for demanding mechanical applications.