S-92845A123 1/4"-20 x 1/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction for extended service life in harsh environments
• Precise component positioning enabled by extended tip design with controlled diameter and length tolerances
• Exceptional thread engagement with Class 3A fit ensuring reliable, vibration-resistant fastening
• High-torque installation capability through hex drive design requiring minimal clearance
• Optimized for industrial applications with coarse UNC threads facilitating quick assembly and disassembly
• Consistent mechanical performance maintained by Rockwell B80 hardness rating
• Headless configuration providing flush mounting in space-constrained applications

Professional Applications & Engineering Value

This 1/4"-20 UNC set screw delivers critical engineering solutions where corrosion resistance and precise component alignment are paramount. The 316 Stainless Steel construction withstands aggressive chemical and marine environments, while the extended tip provides positive location in shaft collars, pulleys, and gears. The Class 3A thread fit ensures minimal backlash in precision machinery, and the headless design allows for flush installation in rotating assemblies. These industrial set screws are particularly valuable in food processing equipment, marine hardware, and chemical processing systems where corrosion resistant fasteners must maintain dimensional stability under constant exposure.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit precision. Features UNC coarse threads (1/4"-20) with right-hand direction and extended tip design (0.156" diameter, 0.067" length). Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements for environmental safety. Hardness rated at Rockwell B80 for consistent mechanical performance across industrial applications.