S-91375A756 1-72 x 3/16" ASME B18.3 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 reliable, vibration-resistant fastening in critical assemblies
• High-strength performance from Rockwell C45 hardened alloy steel prevents stripping and maintains clamp force
• Space-saving headless design allows flush mounting where clearance is limited
• Secure hex drive engagement with 0.035" drive size provides positive torque transmission during installation
• Enhanced grip capability with cup tip design creates positive seating on shaft surfaces
• Regulatory compliance assurance meets ASME B18.3, RoHS 3, and REACH standards for global applications

Professional Applications & Engineering Value

This 1-72 UNF Class 3A Black-Oxide Alloy Steel set screw delivers exceptional engineering value in precision assemblies requiring reliable shaft positioning and rotational security. The fine thread spacing combined with Class 3A thread fit provides superior resistance to vibrational loosening in machinery, automotive, and aerospace components. The headless configuration with hex drive enables installation in confined spaces while maintaining high torque capability. The cup tip design ensures positive contact with shaft surfaces, preventing slippage in high-torque applications. Manufactured from hardened alloy steel with Black-Oxide surface treatment, this fastener withstands harsh operating conditions while meeting stringent industry standards for performance and environmental compliance.

Specification Summary & Compliance

This precision set screw features 1-72 UNF fine threads with Class 3A tolerance for superior fit and vibration resistance. The right-hand thread direction and 0.073" thread diameter provide consistent engagement across mating components. With a 3/16" length and 0.035" hex drive, the fastener delivers reliable performance in space-constrained applications. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, ensuring environmental responsibility in global supply chains.