S-92695A663 5/16"-24 x 1/2" 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 environments
• Exceptional holding power from the 90° cone point design that bites into materials securely and prevents component slippage
• High-strength performance with Rockwell C45 hardness alloy steel that withstands heavy loads and resists deformation
• Precise thread engagement with UNF Class 3A fine threads ensuring tight, vibration-resistant connections in critical assemblies
• Easy installation and removal using the 5/32" hex drive that provides reliable torque transfer without stripping
• Space-saving headless design allowing flush mounting in applications where clearance is limited
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for quality and environmental safety

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers critical engineering value in industrial applications where vibration resistance and permanent positioning are paramount. The UNF Class 3A fine threads provide superior clamping force in precision machinery, automotive components, and manufacturing equipment, preventing loosening under dynamic loads. The 90° cone point creates permanent dimples in shafts and collars, eliminating rotational slip in power transmission systems. Manufactured from high-strength alloy steel with Rockwell C45 hardness, these headless set screws maintain integrity in high-stress environments while the hex drive design enables secure installation in confined spaces. The black-oxide surface treatment adds corrosion protection for extended service life in demanding conditions.

Specification Summary & Compliance

This set screw features 5/16"-24 UNF Class 3A threads with precise fine thread spacing and right-hand thread direction. The 1/2" length and 0.313" thread diameter provide optimal engagement depth. Manufacturing complies with ASME B18.3 specifications (ASTM F912) ensuring dimensional accuracy and performance reliability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for hazardous substance restrictions.