S-92785A449 1/4"-28 x 3/16" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Maximum holding power and vibration resistance achieved through Class 3A fine thread fit for secure, precise fastening
• Deep, secure penetration with 118° cone point angle for excellent grip on mating surfaces
• Exceptional durability provided by Rockwell B80 hardness, resisting wear and deformation under load
• Easy installation in confined spaces with compact, headless design and 1/8" hex drive
• Reliable performance compliance with ASME B18.3 standards ensuring dimensional accuracy and interchangeability
• Environmentally safe operation with RoHS 3 and REACH compliance for regulated applications

Professional Applications & Engineering Value

This 1/4"-28 UNF Class 3A set screw delivers critical engineering value in applications requiring permanent, vibration-resistant fastening. The 18-8 stainless steel construction provides excellent corrosion resistance for machinery exposed to moisture, chemicals, or outdoor elements. The fine thread spacing and Class 3A thread fit ensure superior clamping force and resistance to loosening in high-vibration environments like motors, gear assemblies, and precision equipment. The 118° cone point creates deep indentation on shafts and collars, preventing slippage in torque transmission systems. The headless design with hex drive allows flush mounting in space-constrained applications while maintaining easy installation and removal. These features make it ideal for aerospace, automotive, and industrial manufacturing where reliability and precision are paramount.

Specification Summary & Compliance

This set screw features 1/4"-28 UNF fine threads with Class 3A fit for precise dimensional tolerance and superior thread engagement. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and performance standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions adherence for global industrial applications.