S-91410A784 1/2"-13 x 8" ASME B18.6.2 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with coarse UNC threads designed for maximum grip and resistance to loosening in heavy-duty applications
• Exceptional durability from Rockwell B80 hardness steel construction that withstands high stress and repeated use
• Easy installation and removal with external square drive and square head design for secure tool engagement and high torque application
• Reliable thread fit with Class 2A tolerance ensuring consistent performance and interchangeability in assembly operations
• Enhanced component protection from the cup tip design that minimizes surface damage while providing secure fastening
• Compliance assurance meeting ASME B18.6.2 standards for dimensional accuracy and manufacturing quality
• Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated industries

Professional Applications & Engineering Value

This heavy-duty steel set screw delivers exceptional engineering value in demanding industrial applications where vibration resistance and permanent positioning are critical. The 1/2"-13 UNC coarse thread configuration provides superior holding strength in soft materials and prevents loosening under dynamic loads, while the square head design with external drive allows for high-torque installation without stripping. Manufactured from hardened steel with Rockwell B80 hardness, this fastener maintains its structural integrity in high-stress environments, making it ideal for machinery assembly, construction equipment, and permanent fixture applications. The cup tip ensures concentrated pressure points without damaging mating surfaces, providing reliable positioning of gears, pulleys, and other components where precise alignment is essential for operational efficiency and equipment longevity.

Specification Summary & Compliance

This set screw features precise Class 2A thread fit per UNC standards with 1/2"-13 coarse thread spacing and 8" length for consistent dimensional accuracy. Manufacturing complies with ASME B18.6.2 specifications for square head set screws, ensuring interchangeability and reliability. The product meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations, confirming environmental responsibility and workplace safety standards for industrial procurement.