S-94105A574 5/16"-18 x 1/4" 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 thread precision with Class 3A fit ensures secure, vibration-resistant fastening in critical assemblies
• High-strength alloy steel construction with Rockwell C45 hardness provides reliable performance under heavy loads
• Optimized hex drive design (5/32") allows for high-torque installation without head protrusion in space-constrained applications
• Coarse UNC threading enables quick assembly and disassembly while maintaining strong holding power
• Flat tip configuration creates positive seating and minimal surface marring on components
• Full regulatory compliance with ASME, RoHS 3, and REACH standards ensures workplace safety and environmental responsibility

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers exceptional engineering value in industrial applications where vibration resistance and corrosion protection are critical. The headless design with hex drive provides flush mounting capabilities for machinery, automotive components, and precision equipment where protruding fasteners are unacceptable. The Class 3A thread fit combined with coarse UNC threading ensures rapid installation while maintaining superior clamping force in high-vibration environments. The Rockwell C45 hardness guarantees the screw maintains its mechanical properties under repeated stress cycles, making it ideal for permanent or semi-permanent fastening applications in manufacturing, automation systems, and heavy equipment where reliability cannot be compromised.

Specification Summary & Compliance

This 5/16"-18 UNC set screw features precise Class 3A thread fit with coarse thread spacing and right-hand thread direction. Manufactured to ASME B18.3 specifications with ASTM F912 compliance, ensuring dimensional accuracy and performance reliability. The component meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, confirming its suitability for regulated industrial applications while maintaining the black-oxide surface treatment for enhanced corrosion protection.