S-91375A860 3/4"-16 x 1 3/4" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black-oxide finish, ideal for demanding industrial environments
• Superior thread engagement and vibration resistance due to Class 3A fit and UNF fine thread profile
• Exceptional strength and durability provided by Rockwell C45 hardened alloy steel construction
• Secure, flush mounting with headless design and cup tip for precise component positioning
• Easy installation and high torque capability using the standard 3/8" hex drive
• Reliable performance in heavy-duty applications with 1 3/4" length for deep seating
• Guaranteed quality and safety compliance meeting ASME B18.3, RoHS 3, and REACH standards

Professional Applications & Engineering Value

This Black-Oxide Alloy Steel Set Screw is engineered to address critical challenges in industrial assembly, such as component slippage and corrosion-induced failure. Its 3/4"-16 UNF fine thread and Class 3A fit ensure precise, vibration-resistant fastening in machinery, automotive, and aerospace applications. The headless design with a cup tip allows for flush mounting, preventing interference and providing consistent clamping force. Made from hardened alloy steel with a black-oxide surface treatment, it resists rust and wear, extending service life in harsh conditions. This hex drive set screw delivers reliable performance for securing gears, pulleys, and other rotating components, enhancing overall system integrity.

Specification Summary & Compliance

This set screw features a 3/4"-16 UNF fine thread with Class 3A thread fit for high precision and a right-hand thread direction. It has a length of 1 3/4", 3/8" hex drive, and cup tip. Manufactured from alloy steel hardened to Rockwell C45, it complies with ASME B18.3 specifications. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental and safety standards are met.