S-91375A379 7/16"-14 x 3" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with Class 3A thread fit for superior vibration resistance and secure fastening in demanding applications.
• Enhanced durability and corrosion resistance from Black-Oxide Alloy Steel construction, extending service life in harsh industrial environments.
• High strength and wear resistance with Rockwell C45 hardness, ensuring reliable performance under heavy loads.
• Secure, flush installation thanks to the headless design and cup tip, preventing component interference and providing positive seating.
• Easy installation and removal with a 7/32" hex drive, allowing for high torque application with standard tools.
• Wide compatibility with coarse 7/16"-14 UNC right-hand threads, suitable for common industrial components and assemblies.
• Guaranteed quality and safety through compliance with ASME B18.3 standards, RoHS 3, and REACH regulations.

Professional Applications & Engineering Value

This 7/16"-14 UNC set screw is engineered to address critical challenges in industrial fastening, such as loosening under vibration and corrosion in harsh conditions. The Black-Oxide Alloy Steel material provides a protective layer that resists rust, while the Rockwell C45 hardness ensures it maintains integrity under repetitive stress. Its headless design and cup tip allow for a flush fit, minimizing protrusion and preventing damage to adjacent parts. Ideal for securing gears, pulleys, and collars on shafts in machinery, automotive, and heavy equipment, this hex drive set screw offers reliable, precision fastening where failure is not an option. The coarse thread and Class 3A thread fit enhance grip and ease of assembly, reducing installation time and improving overall system reliability.

Specification Summary & Compliance

This set screw features precise Class 3A thread fit per UNC standards, ensuring tight tolerances for secure fastening. It adheres to ASME B18.3 specifications for dimensional accuracy and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it meets environmental and safety regulations, making it suitable for global industrial use. The construction from Alloy Steel with a Black-Oxide finish further supports durability and regulatory alignment.