S-92505A657 3/8"-24 x 3/4" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black oxide coating that protects against rust and extends service life in harsh industrial environments
• Exceptional torque transmission through hex drive design allowing for secure installation and removal without stripping
• Precision thread engagement with Class 3A fit ensuring tight tolerances and reliable fastening in critical applications
• Enhanced gripping power from extended tip design that provides superior bite into mating components
• High strength performance with Rockwell C45 hardness maintaining structural integrity under heavy loads
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for quality and environmental safety
• Fine thread advantage offering better vibration resistance and more precise adjustment capabilities compared to coarse threads

Professional Applications & Engineering Value

This black oxide alloy steel set screw delivers exceptional engineering value in demanding industrial applications where vibration resistance and precise component positioning are critical. The 3/8"-24 UNF fine threads with Class 3A fit provide superior holding power in pulleys, gears, and collars, preventing loosening under dynamic loads. The extended tip design creates deeper penetration into shaft materials, ensuring positive locking while minimizing surface damage. The hex drive configuration allows for high torque application without cam-out, making installation and maintenance more efficient in confined spaces. Manufactured from alloy steel with Rockwell C45 hardness, these headless set screws maintain their mechanical properties in high-stress environments while the black oxide finish provides additional corrosion protection for extended service life in manufacturing, automotive, and heavy equipment applications.

Specification Summary & Compliance

This precision set screw features 3/8"-24 UNF fine threads with Class 3A thread fit for exacting dimensional accuracy. The extended tip maintains tight tolerances with tip diameter of 0.25" (-0.009" to 0" tolerance) and tip length of 0.099" (-0.005" to 0" tolerance). Manufactured in compliance with ASME B18.3 specifications and certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental regulatory adherence while delivering reliable performance in industrial fastening applications.