S-92785A543 1/4"-28 x 5/8" 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.
• Exceptional holding power provided by the 90° cone point design, ensuring secure and permanent component positioning.
• Precise thread engagement with Class 3A fine thread fit, minimizing backlash and enhancing assembly reliability.
• Easy installation and removal using the 1/8" hex drive, allowing for efficient maintenance in tight spaces.
• High durability from Rockwell B80 hardness, resisting wear and deformation under heavy loads.
• Compliance with industry standards including ASME B18.3, ensuring consistent quality and interoperability.
• Environmental safety with RoHS 3 and REACH compliance, meeting strict regulatory requirements.

Professional Applications & Engineering Value

This 1/4"-28 UNF set screw is engineered for precision applications where reliable component fixation is critical. Made from 18-8 stainless steel, it offers excellent corrosion resistance, making it suitable for machinery, automotive, and aerospace assemblies exposed to moisture or chemicals. The headless design and hex drive facilitate installation in confined areas, while the fine thread and Class 3A thread fit ensure tight tolerances that prevent loosening under vibration. The 90° cone point digs into surfaces for maximum grip, solving common issues like slippage in shaft collars or gears. Ideal for industrial fastening, this screw enhances operational safety and reduces maintenance needs in demanding environments.

Specification Summary & Compliance

This set screw features a 1/4"-28 UNF fine thread with Class 3A thread fit for high precision and minimal clearance. It adheres to ASME B18.3 manufacturing standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.