S-91410A761 3/8"-16 x 2 1/4" ASME B18.6.2 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with coarse UNC threads that provide excellent resistance to loosening in demanding applications
• Enhanced installation torque capability through the external square drive design that prevents tool slippage and damage
• Optimized material strength with Rockwell B80 hardness steel ensuring reliable performance under stress
• Precise thread engagement with Class 2A fit maintaining consistent clamping force throughout the assembly
• Secure component positioning thanks to the cup tip design that creates positive contact points
• Regulatory compliance assurance meeting ASME B18.6.2 specifications for dimensional accuracy and performance
• Environmental responsibility with RoHS 3 and REACH compliance for safe use across global markets

Professional Applications & Engineering Value

This 3/8"-16 UNC steel set screw delivers exceptional engineering value in industrial applications where vibration resistance and permanent positioning are critical. The coarse thread spacing ensures rapid installation while maintaining superior holding strength in softer materials or where frequent disassembly isn't required. The square head design with external drive provides maximum torque transmission without cam-out, making it ideal for high-stress applications in machinery, automotive assemblies, and heavy equipment. The Rockwell B80 hardness provides the optimal balance between strength and ductility, preventing brittle failure while maintaining the set screw's integrity under sustained loads. With its 2-1/4" length and cup tip configuration, this fastener creates reliable, permanent connections in pulley systems, gear assemblies, and coupling applications where precise component alignment is essential for operational efficiency and equipment longevity.

Specification Summary & Compliance

This set screw maintains Class 2A thread fit tolerances as specified by UNC standards, ensuring consistent engagement and reliable performance. The fastener is manufactured in compliance with ASME B18.6.2 specifications governing dimensional accuracy, mechanical properties, and performance requirements. Environmental compliance is verified through RoHS 3 (2015/863/EU) adherence for restricted substance control and REACH (EC 1907/2006) compliance for chemical safety, making this component suitable for global industrial applications requiring certified fastening solutions.