S-91416A315 3/8"-16 x 1" ASME B18.6.2 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with coarse UNC threads designed for maximum resistance to loosening in demanding applications
• Superior mechanical strength from alloy steel construction with Rockwell C45 hardness for reliable performance under heavy loads
• Secure installation and removal with square head design providing positive engagement with standard wrench tools
• Enhanced grip and positioning through cup tip design that creates consistent surface contact and prevents component slippage
• Precision thread fit with Class 2A tolerance ensuring smooth assembly and consistent performance across applications
• Industry-standard compliance meeting ASME B18.6.2 specifications for dimensional accuracy and mechanical properties
• Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated industries

Professional Applications & Engineering Value

This 3/8"-16 UNC Class 2A alloy steel square head set screw delivers critical engineering solutions for industrial applications requiring permanent or semi-permanent component fixation. The coarse thread spacing provides superior resistance to vibration-induced loosening in machinery, automotive, and heavy equipment assemblies. The cup tip design creates concentrated pressure points that securely lock components without damaging mating surfaces, while the external square drive enables high-torque installation with standard tools. Manufactured from alloy steel with Rockwell C45 hardness, this fastener maintains dimensional stability under extreme mechanical stress, making it ideal for shaft collars, gears, pulleys, and other power transmission components where reliability is paramount.

Specification Summary & Compliance

This set screw features 3/8"-16 UNC coarse threads with Class 2A thread fit per ASME standards, ensuring precise dimensional tolerances for consistent performance. The 1" length and square head configuration (19/64" height × 3/8" width) comply with ASME B18.6.2 manufacturing specifications. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted substances for use in regulated industrial environments.