S-91410A619 3/8"-16 x 1/2" ASME B18.6.2 Set Screws

Key Features & Benefits at a Glance

• Maximum torque transfer with external square drive design for secure installation and removal in high-vibration environments
• Superior material durability through Rockwell B80 hardened steel construction resisting deformation under heavy loads
• Reliable fastening performance with Class 2A thread fit ensuring consistent engagement and reduced cross-threading risks
• Enhanced grip security through cup tip design that creates positive seating and minimizes component slippage
• Industry-standard compatibility with UNC coarse threads (3/8"-16) for quick installation in various industrial equipment
• Regulatory compliance assurance meeting ASME B18.6.2 specifications plus RoHS 3 and REACH environmental standards
• Optimized dimensional stability with precise 1/2" length and 3/8" head width for consistent application in confined spaces

Professional Applications & Engineering Value

This square head set screw delivers critical engineering solutions for industrial machinery maintenance and assembly operations. The steel construction with Rockwell B80 hardness provides exceptional resistance to wear and deformation, making it ideal for permanent fastening applications where vibration resistance is paramount. The UNC coarse thread pattern combined with Class 2A thread fit ensures rapid installation while maintaining precise tolerances in pulleys, gears, and collars. The external square drive design allows for high-torque application without stripping, while the cup tip creates concentrated holding force on shafts and rotating components. These industrial set screws are engineered to prevent loosening in demanding environments, from manufacturing equipment to automotive assemblies, providing reliable performance where secure component positioning is critical.

Specification Summary & Compliance

This 3/8"-16 UNC square head set screw maintains precise Class 2A thread fit tolerances per ASME B18.6.2 manufacturing standards. The inch-dimensioned fastener features right-hand coarse threads with 0.375" diameter and 1/2" length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility, while the standardized UNC thread form guarantees interchangeability across industrial applications requiring reliable set screw solutions.