S-92695A303 1/4"-20 x 5/16" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating, extending service life in demanding industrial environments
• Exceptional holding power from the 90° cone point design that bites deeply into mating surfaces
• Precise thread engagement with Class 3A fit UNC coarse threads for reliable, vibration-resistant fastening
• High-strength performance backed by Rockwell C45 hardness rating for heavy-duty applications
• Space-saving headless design with hex socket drive for flush mounting in confined spaces
• Standardized compatibility meeting ASME B18.3 specifications for consistent performance across applications
• Environmental compliance with RoHS 3 and REACH regulations for global manufacturing acceptance

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers critical engineering solutions where vibration resistance and permanent positioning are paramount. The 90° cone point creates exceptional bite force for securing collars, gears, and pulleys on shafts, preventing slippage under high torque conditions. The hex socket drive in the headless design allows for flush installation in space-constrained assemblies while providing substantial torque application capability. UNC coarse threads with Class 3A fit ensure rapid installation and reliable performance in machinery, automotive, and industrial equipment where precision set screws must maintain alignment despite continuous operational stresses.

Specification Summary & Compliance

Manufactured to exact ASME B18.3 specifications with 1/4"-20 UNC coarse threads maintaining Class 3A dimensional accuracy for superior thread engagement. The 5/16" length and 1/8" hex drive provide standardized installation compatibility. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures suitability for global industrial applications requiring restricted substance control.