S-91375A652 3/8"-24 x 2" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating for extended service life in harsh industrial environments
• Precise thread engagement with Class 3A fit ensuring reliable, vibration-resistant fastening in critical applications
• Exceptional hardness and strength with Rockwell C45 rating providing excellent wear resistance and load-bearing capacity
• Secure installation and removal through hex drive design offering superior torque transmission and tool accessibility
• Optimized fine thread performance with UNF 3/8"-24 specification delivering enhanced clamping force and adjustment precision
• Versatile cup tip design creating positive seating and minimal surface damage on mating components
• Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations for global industrial use

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers exceptional engineering value in demanding industrial applications where vibration resistance and long-term reliability are critical. The Class 3A UNF fine thread provides superior clamping force distribution, making it ideal for precision machinery, automotive assemblies, and manufacturing equipment where exact positioning and secure fastening are paramount. The headless hex drive design allows for flush mounting in confined spaces, while the cup tip ensures positive contact without damaging shaft surfaces. Engineered for industrial set screw applications requiring consistent performance under stress, this fastener's Rockwell C45 hardness maintains structural integrity even in high-vibration environments, preventing loosening and maintaining alignment in critical mechanical systems.

Specification Summary & Compliance

This precision set screw features 3/8"-24 UNF fine thread with Class 3A thread fit for superior dimensional accuracy and 2" length. Manufactured from alloy steel with black-oxide surface treatment and Rockwell C45 hardness. The product complies with ASME B18.3 manufacturing specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards for industrial use worldwide.