S-92311A721 1/2"-13 x 2 1/2" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Maximum holding power ensured by Class 3A thread fit for secure, vibration-resistant fastening
• Easy installation and removal with 1/4" hex drive providing reliable torque transmission
• Enhanced grip and alignment through cup tip design that minimizes component surface damage
• Optimized for heavy-duty applications with coarse UNC threads and Rockwell B80 hardness
• Reliable industrial compliance meeting ASME B18.3 standards for consistent quality and performance
• Environmentally responsible manufacturing with full RoHS 3 and REACH compliance

Professional Applications & Engineering Value

This 1/2"-13 UNC Class 3A hex headless set screw delivers exceptional engineering value in demanding industrial applications where vibration resistance and corrosion protection are critical. The 18-8 stainless steel construction provides excellent durability against moisture, chemicals, and temperature variations, while the Rockwell B80 hardness ensures the screw maintains its structural integrity under heavy loads. The coarse thread spacing allows for rapid installation in production environments, and the cup tip design creates positive engagement with mating components without causing excessive surface deformation. Ideal for machinery assembly, automotive components, and permanent industrial fixtures, this headless set screw solves common challenges of loosening under vibration and environmental degradation.

Specification Summary & Compliance

This precision set screw features 1/2"-13 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy and tight tolerances. The 2-1/2" length provides ample engagement for secure fastening applications. Manufactured in compliance with ASME B18.3 specifications to ensure consistent quality and performance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting the latest environmental regulations for industrial components.