S-92695A654 1/4"-28 x 1" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating protecting the alloy steel core in demanding environments
• Exceptional thread precision with Class 3A fit ensuring reliable, vibration-resistant fastening in critical assemblies
• Maximum torque transmission via the 1/8" hex drive, preventing tool slippage during high-stress installation
• Enhanced gripping power from the 90° cone point design that bites into shafts for permanent component positioning
• Long-term durability backed by Rockwell C45 hardness, maintaining structural integrity under repeated loads
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for global industrial use
• Space-saving headless design allowing flush mounting where clearance is limited

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers critical performance in power transmission systems, machinery, and precision equipment where vibration resistance and permanent positioning are paramount. The Class 3A UNF fine threads provide superior engagement in tapped holes, while the 90° cone point creates concentrated surface pressure that prevents axial movement of gears, collars, and pulleys. Engineered for high-torque applications, the combination of Rockwell C45 hardness and corrosion-resistant coating ensures reliable service in industrial environments where moisture and chemicals are present. The headless configuration with hex drive makes it ideal for confined spaces requiring secure fastening without protrusion.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit for precision tolerance. Features 1/4"-28 UNF fine threads with right-hand direction and 1" length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets.