S-91375A802 5/8"-11 x 2" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with Class 3A thread fit ensuring tight, secure fastening in demanding applications
• Superior corrosion resistance from the black-oxide finish, extending service life in harsh industrial environments
• High-strength durability provided by alloy steel construction with Rockwell C45 hardness for reliable performance
• Easy installation and removal with 5/16" hex drive design, allowing efficient maintenance access
• Enhanced grip and alignment from the cup tip design, preventing component slippage during operation
• Wide compatibility with 5/8"-11 UNC coarse threads, suitable for various industrial machinery and equipment
• Space-saving headless design ideal for applications where protruding fastener heads are not feasible

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers critical engineering solutions for industrial applications requiring maximum security and vibration resistance. The 5/8"-11 UNC coarse thread with Class 3A precision ensures superior engagement in components subject to heavy loads and stress, while the cup tip design provides concentrated contact pressure to prevent rotational movement in shafts, collars, and pulleys. Manufactured from alloy steel with Rockwell C45 hardness, this hex drive headless screw maintains structural integrity under extreme conditions, making it ideal for power transmission systems, industrial machinery, and automotive assemblies where reliability is paramount. The right-hand thread direction and 2" length provide versatile installation options across various engineering applications.

Specification Summary & Compliance

This set screw features 5/8"-11 UNC coarse threads with Class 3A thread fit for precision tolerance, manufactured to meet ASME B18.3 specifications (ASTM F912). The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial sectors. With Rockwell C45 hardness and black-oxide surface treatment, the screw maintains dimensional stability and corrosion resistance in demanding applications.