S-91375A919 1"-12 x 2" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Class 3A thread fit for precise, vibration-resistant assemblies in demanding applications.
• Enhanced corrosion resistance from the black-oxide finish, extending service life in industrial environments.
• Exceptional durability and strength provided by alloy steel and Rockwell C45 hardness, resisting wear and deformation.
• Secure, flush mounting due to the headless design and cup tip, preventing component slippage and protrusion.
• Easy installation and removal with a 9/16" hex drive, allowing high torque application in confined spaces.
• Reliable fine thread engagement with 1"-12 UNF right-hand threads, ensuring tight, accurate fastening.
• Broad industrial compliance meeting ASME B18.3, RoHS 3, and REACH, ensuring safety and regulatory adherence.

Professional Applications & Engineering Value

This black-oxide alloy steel set screw is engineered to address critical industrial challenges, such as vibration loosening and component misalignment in machinery, automotive, and aerospace assemblies. The Class 3A thread fit and UNF fine threads deliver superior clamping force and positional accuracy, reducing maintenance needs. Its headless design and cup tip provide a secure, flush fit, ideal for permanent or semi-permanent fastening in high-stress environments. With a Rockwell C45 hardness, it withstands heavy loads and repetitive stress, ensuring long-term reliability in industrial set screws applications where precision and strength are paramount.

Specification Summary & Compliance

This set screw features a 1" diameter with 1"-12 UNF fine threads and Class 3A thread fit for high precision. It complies with ASME B18.3 manufacturing standards and is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental safety and regulatory adherence in global markets.