S-91375A608 5/16"-24 x 2" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Class 3A thread fit ensuring tight, reliable connections in demanding applications
• Enhanced corrosion resistance from black-oxide coating, extending service life in industrial environments
• High-strength durability with Rockwell C45 hardness alloy steel, resisting deformation under heavy loads
• Precise torque application via 5/32" hex socket drive, allowing secure installation without head protrusion
• Secure non-slip grip from cup tip design, preventing component movement in assemblies
• Fine thread engagement with 5/16"-24 UNF threads, providing excellent vibration resistance
• Regulatory compliance assurance meeting ASME B18.3, ASTM F912, RoHS 3 and REACH standards

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers exceptional performance in precision industrial applications where component slippage and vibration loosening are critical concerns. The Class 3A thread fit provides tighter tolerances than standard fasteners, ensuring superior clamping force in machinery, automotive, and manufacturing equipment. The headless hex socket design allows flush mounting in confined spaces while the cup tip creates positive engagement with shaft surfaces. Manufactured to ASME B18.3 and ASTM F912 specifications, this 2" UNF fine thread set screw maintains dimensional stability under extreme conditions, solving alignment and retention challenges in high-vibration environments.

Specification Summary & Compliance

This precision fastener features 5/16"-24 UNF fine threads with Class 3A thread fit for exacting dimensional accuracy. The 2" length and 0.313" thread diameter maintain strict manufacturing tolerances per ASME B18.3 specifications. Compliance includes ASTM F912 material standards, RoHS 3 (2015/863/EU) environmental directives, and REACH (EC 1907/2006) regulations for hazardous substance restrictions.