S-94105A613 3/8"-16 x 5/8" 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 environments
• Exceptional thread precision with Class 3A fit for secure, vibration-resistant fastening in critical assemblies
• High-strength performance from Rockwell C45 hardened alloy steel, resisting deformation under heavy loads
• Optimized installation control through 3/16" hex drive, allowing high torque application without head protrusion
• Reliable coarse threading (UNC 3/8"-16) for faster installation and reduced cross-threading risks
• Industry-standard compliance meeting ASME B18.3 specifications for consistent quality and interchangeability
• Environmental regulation adherence with RoHS 3 and REACH compliance for global supply chain integration

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers critical engineering solutions for industrial applications where vibration resistance and corrosion protection are paramount. The headless design with hex drive enables flush mounting in precision machinery, while the Class 3A UNC threads maintain clamping force in high-stress environments. The Rockwell C45 hardness ensures dimensional stability for permanent positioning applications, making it ideal for securing gears, pulleys, and collars in manufacturing equipment, automotive systems, and heavy machinery. The combination of coarse threading and right-hand direction provides rapid assembly in production lines without compromising joint integrity.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit for precision tolerance. Features 3/8"-16 UNC coarse threads with 5/8" length and flat tip design. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Material certification includes ASTM F912 alloy steel composition with black-oxide surface treatment for enhanced durability.