S-91375A669 7/16"-14 x 1" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with Class 3A thread fit ensuring precise, vibration-resistant fastening in demanding applications
• Superior corrosion resistance from black-oxide surface treatment protecting against rust and extending service life
• High-strength durability with Rockwell C45 hardness alloy steel construction resisting deformation under heavy loads
• Secure installation through hex drive design providing reliable torque transfer and preventing tool slippage
• Enhanced grip performance with cup tip design concentrating pressure for superior component retention
• Industry-standard compatibility with UNC coarse threads ensuring easy installation and interchangeability
• Regulatory compliance meeting RoHS 3 and REACH environmental standards for safe global usage

Professional Applications & Engineering Value

This 7/16"-14 UNC set screw delivers critical engineering solutions for industrial assembly challenges where vibration resistance and permanent positioning are paramount. The black-oxide alloy steel construction combined with Rockwell C45 hardness provides exceptional durability against rotational forces and environmental exposure. The cup tip design creates concentrated contact pressure, preventing shaft slippage in pulleys, gears, and collars. With Class 3A thread fit and coarse thread spacing, installation becomes more efficient while maintaining precision alignment in heavy machinery, automotive systems, and manufacturing equipment. The headless configuration allows for flush mounting in space-constrained applications, making it ideal for permanent assemblies requiring reliable, tamper-resistant fastening.

Specification Summary & Compliance

This set screw maintains Class 3A thread fit tolerance with 7/16"-14 UNC coarse threads and right-hand thread direction. Manufacturing complies with ASME B18.3 specifications (ASTM F912) ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting global standards for restricted substances. Additional specifications include 1" length, 7/32" hex drive, and cup tip configuration for specialized fastening requirements.