S-92311A541 1/4"-20 x 7/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Maximum torque transmission through the 1/8" hex drive design, preventing tool slippage during installation
• Exceptional holding power with the cup point tip that bites securely into shafts and components
• Precise thread engagement with Class 3A fit, ensuring reliable performance in critical assemblies
• Enhanced durability from Rockwell B80 hardness, providing excellent resistance to wear and deformation
• Wide compatibility with UNC coarse 1/4"-20 threads, suitable for various industrial applications
• Regulatory compliance with RoHS 3 and REACH, meeting international environmental and safety standards

Professional Applications & Engineering Value

This 1/4-20 UNC set screw delivers critical engineering solutions for industrial applications requiring secure component positioning. The 18-8 stainless steel construction provides excellent corrosion resistance, while the cup point design creates permanent seating in shafts, pulleys, and gears - preventing rotational slippage under high vibration conditions. The hex headless configuration allows for flush mounting in confined spaces, and the Class 3A thread fit ensures precise engagement with mating components. These set screws are particularly valuable in machinery assembly, automotive systems, and precision equipment where reliable fastening is essential for operational safety and performance longevity.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit for superior dimensional accuracy. Features 1/4"-20 UNC coarse threads with right-hand direction and 7/8" length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.