S-92311A340 1/4"-28 x 1 3/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• Maximum holding power with precision cup point design that bites securely into shafts and components
• Exceptional thread precision with Class 3A fit for tighter tolerances and vibration resistance
• Optimized torque transmission through 1/8" hex drive design for secure installation without stripping
• Enhanced durability with Rockwell B80 hardness maintaining structural integrity under stress
• Fine thread spacing providing superior adjustment precision in critical applications
• Complete regulatory compliance meeting ASME B18.3 standards and environmental regulations

Professional Applications & Engineering Value

These 18-8 stainless steel set screws deliver exceptional performance in demanding industrial settings where corrosion resistance and precise positioning are critical. The cup point design creates permanent seating in shafts, pulleys, and collars, preventing slippage even under high vibration conditions. With Class 3A thread fit and UNF fine threading, these hex headless screws provide superior clamping force distribution and minimal backlash in precision machinery, automotive components, and manufacturing equipment. The combination of Rockwell B80 hardness and right-hand thread configuration ensures reliable performance in assembly lines where repeated adjustments are necessary without compromising thread integrity.

Specification Summary & Compliance

Manufactured to exacting ASME B18.3 specifications with Class 3A thread fit for precision applications. Features 1/4"-28 UNF fine threads with right-hand direction and 1-3/4" length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.