S-91375A854 3/4"-16 x 1/2" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with black-oxide coating, extending service life in demanding industrial environments
• Superior thread precision with Class 3A fit ensures reliable, vibration-resistant fastening in critical assemblies
• High tensile strength from Rockwell C45 hardened alloy steel prevents stripping and deformation under heavy loads
• Optimized torque transmission through 3/8" hex drive design enables secure installation without head protrusion
• Enhanced grip stability with cup tip configuration maintains positional integrity of components on shafts and axles
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for global industrial applications
• Fine thread advantage with 3/4"-16 UNF profile provides superior adjustment precision in limited-space configurations

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers critical engineering solutions for industrial machinery, automotive systems, and precision equipment where vibration resistance and positional stability are paramount. The Class 3A thread fit combined with UNF fine threading creates exceptional clamping force distribution, effectively preventing loosening in high-stress applications. The headless design with 3/8" hex drive allows flush mounting in confined spaces while maintaining maximum torque capability. The cup tip configuration bites securely into shaft materials without causing permanent damage, making it ideal for adjustable assemblies requiring periodic repositioning. Engineered for long-term reliability, this set screw addresses common failure points in rotating equipment and precision alignment systems.

Specification Summary & Compliance

This precision set screw maintains Class 3A thread tolerances per UNF standards with 3/4"-16 fine thread specification and 1/2" length. Manufacturing complies with ASME B18.3 dimensional requirements and ASTM F912 material specifications. The component is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant for hazardous substance restrictions, ensuring global regulatory acceptance for industrial applications.