S-92695A304 1/4"-20 x 3/8" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with 90° cone point design that bites into materials for maximum resistance against loosening under vibration
• Exceptional durability through Rockwell C45 hardness rating that maintains thread integrity and point sharpness through repeated installations
• Enhanced corrosion resistance from black-oxide coating that protects against rust in demanding industrial environments
• Precise Class 3A thread fit ensures tight tolerances for reliable engagement with mating components
• Easy installation and removal with 1/8" hex drive that provides positive torque transmission without stripping
• Space-saving headless design allows for flush mounting in applications where clearance is limited
• Coarse UNC threading enables quick assembly and disassembly while maintaining strong holding capability

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers exceptional performance in demanding industrial applications where vibration resistance and precise component positioning are critical. The 90° cone point creates permanent seating impressions in shafts and collars, preventing relative movement in power transmission systems, machinery assemblies, and precision equipment. The Class 3A UNC thread specification ensures consistent engagement with mating components, while the Rockwell C45 hardness maintains point integrity through multiple installation cycles. Ideal for securing gears, pulleys, and bearings onto shafts in manufacturing equipment, automotive systems, and heavy machinery, this headless set screw provides reliable fastening where space constraints prevent the use of traditional bolt heads.

Specification Summary & Compliance

Manufactured to exacting ASME B18.3 specifications with Class 3A thread fit for superior dimensional accuracy. Features 1/4"-20 UNC coarse threads with right-hand direction and precise 90° cone point geometry. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. The black-oxide surface treatment on alloy steel substrate provides consistent corrosion protection while maintaining the mechanical properties required for high-strength fastening applications.