S-92695A826 1/2"-20 x 1 1/2" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Class 3A thread fit for reliable, vibration-resistant fastening in critical assemblies
• Enhanced corrosion resistance thanks to the black-oxide finish on alloy steel, extending service life in harsh environments
• Exceptional durability from Rockwell C45 hardness, resisting wear and deformation under high-stress conditions
• Maximum clamping force with the 90° cone point design, providing deep penetration and secure positioning on shafts and collars
• Easy installation and removal using the 1/4" hex drive, allowing for high torque application in confined spaces
• Precision-engineered fine threads (UNF 1/2"-20) for better tension control and reduced risk of stripping in fine-adjustment applications
• Headless design for flush mounting where protruding fasteners are not feasible, maintaining a clean and safe profile

Professional Applications & Engineering Value

This black-oxide alloy steel set screw is engineered to address common industrial challenges such as component slippage, vibration-induced loosening, and corrosion in demanding environments. The Class 3A thread fit ensures tight tolerances and superior grip, making it ideal for precision machinery, automotive systems, and power transmission equipment where reliable shaft and collar fixation is critical. The 90° cone point concentrates force for deep indentation, preventing rotational movement without damaging components. Combined with Rockwell C45 hardness and fine UNF threads, it delivers consistent performance in high-torque, fine-adjustment applications, reducing maintenance needs and downtime.

Specification Summary & Compliance

This set screw adheres to ASME B18.3 and ASTM F912 specifications, ensuring dimensional accuracy and manufacturing consistency. The Class 3A thread fit provides precise thread engagement for superior holding power. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material restrictions adherence. The right-hand UNF fine thread (1/2"-20) and 1 1/2" length support standardized installation across industrial applications.