S-92695A627 5-40 x 5/16" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with Class 3A thread fit for precise, vibration-resistant assemblies in demanding applications.
• Enhanced corrosion resistance from the Black-Oxide finish on Alloy Steel, extending service life in industrial environments.
• Secure, flush mounting due to the headless design, ideal for space-constrained assemblies without protruding hardware.
• Easy installation and removal with the 1/16" hex drive, allowing for reliable torque application in tight spaces.
• Superior grip and alignment from the 90° cone point, which bites into shafts and components to prevent slippage.
• High durability and wear resistance thanks to Rockwell C45 hardness, maintaining performance under mechanical stress.
• Broad compatibility with UNC coarse threads and right-hand direction, ensuring easy integration into standard industrial equipment.

Professional Applications & Engineering Value

This 5-40 UNC set screw is engineered to address common challenges in precision machinery, such as shaft securing, pulley alignment, and gear positioning. The Black-Oxide Alloy Steel construction provides reliable corrosion protection, reducing maintenance needs in humid or abrasive settings. Its headless design and 1/16" hex drive enable flush installation, minimizing space requirements while allowing efficient torque application. The 90° cone point ensures a firm bite into materials, preventing rotational loosening from vibrations—a critical feature for motors, actuators, and conveyor systems. Compliant with ASME B18.3, it meets rigorous industrial standards for dimensional accuracy and performance, making it a trusted choice for OEMs and maintenance teams seeking long-term reliability.

Specification Summary & Compliance

This set screw adheres to Class 3A thread fit for tight tolerances and UNC coarse threads (5-40 size) with a right-hand direction. It meets ASME B18.3 specifications for dimensional consistency and is manufactured from Alloy Steel with a Rockwell C45 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.