S-92313A537 1/4"-20 x 1/2" ASME B18.3 Set Screws
Set Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh industrial environments and chemical exposure
- Exceptional thread precision with Class 3A fit for secure, vibration-resistant fastening and reduced risk of loosening
- High mechanical strength backed by Rockwell B80 hardness, ensuring long-term durability under heavy loads
- Secure cup tip design provides excellent grip and prevents damage to shaft surfaces during installation
- Compact headless profile with 1/8" hex drive allows for flush mounting in space-constrained applications
- Reliable coarse threading (UNC 1/4"-20) enables quick installation and superior performance in most materials
- Full regulatory compliance with ASME B18.3, RoHS 3, and REACH standards for global industrial acceptance
Professional Applications & Engineering Value
This hex headless set screw delivers critical engineering value in precision assemblies where space optimization and corrosion resistance are paramount. Manufactured from 316 Stainless Steel, it solves common industrial challenges like equipment degradation in marine, chemical processing, and food manufacturing environments. The UNC Class 3A thread fit ensures zero backlash in high-vibration applications, while the cup tip design provides maximum contact pressure for permanent shaft positioning in gears, collars, and pulleys. Its headless configuration and 1/8" hex drive make it ideal for concealed fastening in machinery, automotive components, and precision instruments where protrusions are unacceptable.
Specification Summary & Compliance
This 1/4"-20 UNC set screw maintains precise Class 3A thread tolerances with coarse thread spacing and right-hand thread direction. Manufacturing strictly follows ASME B18.3 specifications for dimensional accuracy and performance. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and unrestricted use in international markets.
