S-92765A350 1/4"-28 x 1/4" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating, extending service life in harsh industrial environments
• Precise Class 3A thread fit ensures tight, secure fastening with minimal backlash in critical assemblies
• High-strength alloy steel construction with Rockwell C45 hardness provides reliable, vibration-resistant locking
• Compact headless design allows flush mounting in space-constrained applications
• Fine UNF thread spacing delivers enhanced grip and load distribution on mating components
• Oval tip configuration minimizes surface damage while maintaining positive positioning
• 1/8" hex drive compatibility enables high-torque installation with standard industrial tools

Professional Applications & Engineering Value

Engineered for precision industrial fastening, this black-oxide alloy steel set screw solves critical challenges in machinery assembly and component alignment. The Class 3A UNF fine threads provide exceptional clamping force retention while the headless hex drive design eliminates protrusion in rotating assemblies. Ideal for securing gears, pulleys, and collars in automotive, aerospace, and manufacturing equipment, the Rockwell C45 hardness ensures permanent deformation resistance under cyclic loading. The oval tip creates consistent bearing pressure without marring precision shafts, making it indispensable for right-hand thread applications requiring repeated adjustments.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit (0.25"-28 UNF fine thread) and 1/4" length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Meets ASTM F912 material standards for consistent performance in industrial fastener applications.