S-92311A720 1/2"-13 x 2" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior vibration resistance thanks to the cup point design that creates deep indentation for maximum holding power in dynamic applications
• Exceptional corrosion resistance provided by 18-8 stainless steel construction, ideal for harsh industrial environments
• Precise thread engagement with Class 3A fit ensuring tight tolerances and reliable fastening performance
• Optimized torque transmission through the 1/4" hex drive that prevents stripping and allows for high installation forces
• Enhanced durability with Rockwell B80 hardness that maintains structural integrity under repeated stress
• Industry-standard compatibility with UNC coarse threading (1/2"-13) that matches common machinery and equipment
• Regulatory compliance assurance meeting ASME B18.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

This hex headless set screw delivers exceptional engineering value in demanding industrial applications where vibration resistance and permanent positioning are critical. The 18-8 stainless steel construction provides excellent corrosion resistance for machinery exposed to moisture, chemicals, or outdoor elements, while the cup point design creates a permanent dimple in the shaft for maximum holding power that withstands intense vibrations in motors, pulleys, and rotating assemblies. The Class 3A thread fit ensures precise engagement with mating components, reducing the risk of loosening in precision equipment. With its 2" length and 1/2"-13 UNC coarse threading, this set screw is engineered for heavy-duty applications requiring reliable, long-term fastening solutions in manufacturing, automotive, and industrial machinery sectors.

Specification Summary & Compliance

This high-performance set screw features 1/2"-13 UNC coarse threading with Class 3A thread fit for precise dimensional accuracy and optimal engagement. Manufactured to ASME B18.3 specifications, the screw ensures consistent quality and performance in industrial applications. The product is fully compliant with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) requirements, making it suitable for use in environmentally conscious manufacturing operations worldwide. The combination of 18-8 stainless steel material and Rockwell B80 hardness provides the ideal balance of corrosion resistance and mechanical strength for long-term reliability.