S-91410A585 5/16"-18 x 1 1/4" ASME B18.6.2 Set Screws

Key Features & Benefits at a Glance

• Maximum holding power with coarse UNC threads that provide superior resistance to vibration and loosening in demanding applications
• Exceptional durability from Rockwell B80 hardness steel construction that withstands repeated tightening without stripping or deformation
• Secure installation through square head design that allows for high torque application with standard wrench tools
• Precise positioning with cup point tip that creates deep indentations for permanent component alignment
• Reliable performance ensured by Class 2A thread fit that maintains consistent engagement while allowing for easy assembly
• Industry compliance with ASME B18.6.2 specifications for dimensional accuracy and mechanical properties
• Environmental responsibility through RoHS 3 and REACH compliance, making them suitable for regulated industries

Professional Applications & Engineering Value

This 5/16"-18 UNC steel set screw delivers exceptional engineering value in industrial applications where component security is critical. The square head design with external drive provides superior torque transmission compared to standard fasteners, preventing tool slippage during high-tension installations. The coarse thread pitch ensures rapid assembly while maintaining holding strength in vibration-prone environments such as machinery, automotive components, and manufacturing equipment. The cup point tip creates permanent seating in shafts and collars, eliminating positional drift in precision assemblies. Manufactured from steel with Rockwell B80 hardness, these set screws withstand repeated adjustments without thread damage, making them ideal for maintenance-intensive applications where reliability cannot be compromised.

Specification Summary & Compliance

This set screw features Class 2A thread fit per UNC standards, ensuring proper clearance for reliable assembly while maintaining secure engagement. The 1 1/4" length and 5/16"-18 thread size provide optimal dimensional consistency for industrial applications. Manufacturing complies with ASME B18.6.2 specifications for mechanical properties and dimensional accuracy. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, confirming suitability for regulated industries and international markets.