S-91375A664 7/16"-14 x 1/2" 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 performance from alloy steel with Rockwell C45 hardness for reliable load-bearing capability
• Secure installation and removal through 7/32" hex drive design, preventing tool slippage during torque application
• Enhanced gripping power with cup tip configuration that bites into shaft materials without causing damage
• Industry-standard compatibility with UNC coarse threads for quick assembly and broad component matching
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for global manufacturing applications

Professional Applications & Engineering Value

This 7/16"-14 UNC set screw delivers critical engineering solutions for industrial equipment requiring precise component positioning and rotational force transmission. The black-oxide alloy steel construction provides essential corrosion protection while maintaining the Rockwell C45 hardness needed to withstand repetitive stress in pulley systems, gear assemblies, and coupling applications. The Class 3A thread fit ensures minimal backlash in high-vibration environments, while the cup tip design creates positive engagement with shaft materials without creating stress concentrations. As a headless set screw with hex drive configuration, it offers flush mounting in space-constrained assemblies where protruding fasteners would interfere with mechanical operation. These features make it particularly valuable in manufacturing equipment, automotive components, and heavy machinery where reliability and precision are paramount.

Specification Summary & Compliance

This set screw maintains Class 3A thread fit per UNC standards with 7/16"-14 coarse threading and right-hand direction. Manufacturing conforms to ASME B18.3 specifications (ASTM F912) with dimensional accuracy ensured throughout production. The product is fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations regarding chemical safety, making it suitable for global industrial supply chains and environmentally conscious manufacturing operations.