S-92845A091 3-56 x 1/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments
• Precise and secure fastening ensured by Class 3A thread fit for minimal backlash and vibration resistance
• Enhanced torque transmission with 0.050" hex drive, preventing tool slippage during installation
• Reliable component positioning thanks to the extended tip design for positive engagement
• Long-term mechanical durability provided by Rockwell B80 hardness, resisting deformation under load
• Broad industry compatibility with UNF fine threads meeting ASME B18.3 specifications
• Environmentally responsible manufacturing with full RoHS 3 and REACH compliance

Professional Applications & Engineering Value

This 3-56 UNF set screw delivers critical performance in precision assemblies where space constraints and reliability are paramount. The 18-8 stainless steel material provides excellent resistance to oxidation and chemical exposure, making it suitable for electronics, medical devices, and outdoor equipment. Its headless design and extended tip allow for flush mounting and secure shaft retention in collars, pulleys, and gears. The fine UNF thread and Class 3A fit ensure tight tolerances, reducing the risk of loosening in high-vibration industrial applications. Engineered to meet ASME B18.3 standards, it offers consistent quality for OEMs and maintenance professionals requiring dependable set screws with precise dimensional control.

Specification Summary & Compliance

This set screw features a 3-56 UNF thread with Class 3A thread fit for high precision. Dimensions include a 1/8" length, 0.050" hex drive, and extended tip (0.027" length, 0.066" diameter) with specified tolerances. Manufactured from 18-8 stainless steel hardened to Rockwell B80. Compliant with ASME B18.3 specifications, RoHS 3 (2015/863/EU), and REACH (EC 1907/2006) regulations.