S-92311A266 3-56 x 1/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 Stainless Steel construction, ensuring long-term reliability in harsh environments
• Maximum holding power with Class 3A thread fit for precise, secure fastening in critical assemblies
• Enhanced grip and anti-loosening from the cup point tip that bites into mating surfaces
• High-strength performance with Rockwell B80 hardness for excellent durability under load
• Easy installation in confined spaces using the compact 0.050" hex drive headless design
• Reliable fine thread engagement with 3-56 UNF right-hand threads for vibration resistance
• Full regulatory compliance meeting ASME B18.3 standards and environmental regulations including RoHS 3 & REACH

Professional Applications & Engineering Value

These 3-56 UNF set screws deliver critical engineering solutions where space constraints and vibration resistance are paramount. The 18-8 Stainless Steel construction provides excellent corrosion resistance for demanding environments like marine, food processing, and chemical equipment. The cup point tip creates permanent seating in shafts and collars, preventing component slippage in power transmission systems. With Class 3A thread fit precision and fine thread spacing, these hex headless set screws maintain clamping force in high-vibration applications including robotics, precision instruments, and automotive assemblies. The Rockwell B80 hardness ensures the right-hand thread maintains integrity through repeated adjustments.

Specification Summary & Compliance

Manufactured to exacting ASME B18.3 specifications with Class 3A thread fit tolerance for precision assembly. The 3-56 UNF fine thread configuration ensures secure fastening with 0.099" thread diameter and 1/8" length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making these set screws suitable for global industrial applications requiring stringent material restrictions.