S-91410A783 1/2"-13 x 4 1/2" ASME B18.6.2 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with coarse UNC threads designed for secure fastening in demanding industrial applications
• Superior durability thanks to steel construction and Rockwell B80 hardness that resists wear and deformation
• Reliable installation with square external drive that provides excellent torque transmission and prevents tool slippage
• Precise thread engagement through Class 2A thread fit ensuring consistent performance and easy assembly
• Enhanced grip and positioning with cup point tip that digs into materials for permanent component alignment
• Compliance assurance meeting ASME B18.6.2 specifications for dimensional accuracy and performance reliability
• Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated industries

Professional Applications & Engineering Value

This 1/2"-13 UNC steel set screw delivers critical engineering value in industrial applications where vibration resistance and permanent positioning are paramount. The coarse thread spacing provides superior holding strength in softer materials and faster installation, while the square head design enables high-torque application without cam-out issues. The cup point tip creates a permanent dimple in the shaft or component, preventing rotational slippage in high-vibration environments like machinery, automotive systems, and heavy equipment. Manufactured from steel with Rockwell B80 hardness, this fastener maintains its structural integrity under repeated stress cycles, making it ideal for permanent assemblies where disassembly isn't anticipated. The combination of Class 2A thread fit and ASME B18.6.2 compliance ensures dimensional consistency across production runs for reliable performance in OEM and MRO applications.

Specification Summary & Compliance

This set screw features 1/2"-13 UNC coarse threads with Class 2A thread fit for standard clearance and easy assembly. The fastener is manufactured to ASME B18.6.2 specifications ensuring dimensional accuracy and performance reliability. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental safety and restricted substance adherence. The 4 1/2" length and square head design with external drive provide consistent installation characteristics across applications.