S-91375A516 1"-8 x 6" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Class 3A thread fit ensuring precise, vibration-resistant connections in demanding applications
• Exceptional durability from Rockwell C45 hardness alloy steel that withstands heavy loads and repeated use
• Corrosion-resistant protection through black-oxide coating that extends service life in industrial environments
• Secure installation with 9/16" hex drive providing high torque capability without stripping
• Positive locking action from cup tip design that bites into mating surfaces for permanent positioning
• Reliable coarse threading with 1"-8 UNC specification for quick assembly and disassembly
• Space-saving headless design allowing flush mounting where clearance is limited

Professional Applications & Engineering Value

This high-performance set screw delivers critical engineering solutions for industrial machinery, automotive components, and heavy equipment assemblies. The Black-Oxide Alloy Steel construction combined with Rockwell C45 hardness addresses common failure points in high-vibration environments, preventing loosening under dynamic loads. The 1"-8 UNC coarse thread configuration ensures rapid installation while maintaining structural integrity, particularly valuable in maintenance scenarios requiring frequent adjustments. The cup tip design creates permanent seating in shafts, collars, and pulleys, solving alignment and slippage issues in power transmission systems. Engineered for right-hand thread direction applications, this 6-inch set screw provides extended reach for deep assembly requirements where standard fasteners fall short.

Specification Summary & Compliance

Manufactured to exacting Class 3A thread fit tolerances with 1"-8 UNC coarse thread spacing ensuring interchangeability and precision alignment. Complies with ASME B18.3 dimensional specifications and ASTM F912 material standards for consistent performance. Meets environmental regulations including RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant requirements, making it suitable for global industrial applications with strict chemical substance restrictions.