S-91375A593 5/16"-18 x 2 1/2" ASME B18.3, ASTM F912 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 black-oxide coating, extending service life in demanding industrial environments
- Exceptional holding power from Rockwell C45 hardness alloy steel, preventing loosening under vibration and heavy loads
- Precise thread engagement with Class 3A fit for secure fastening in critical assembly applications
- Easy installation and removal using standard 5/32" hex tools, reducing maintenance time and tooling costs
- Maximum material penetration with cup point design for permanent positioning of components on shafts and collars
- Reliable performance compliance meeting ASME B18.3 standards for consistent quality and dimensional accuracy
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance for global supply chain integration
Professional Applications & Engineering Value
This 5/16"-18 UNC set screw delivers exceptional engineering value for industrial applications requiring permanent component positioning. The black-oxide alloy steel construction provides superior corrosion protection while maintaining Rockwell C45 hardness for maximum resistance to wear and deformation. The Class 3A thread fit ensures precise engagement in machinery, automotive, and manufacturing equipment where vibration resistance is critical. The headless hex drive design allows for flush mounting in confined spaces, while the cup point tip creates permanent dimples in shafts for secure locking. These industrial set screws are engineered to solve common challenges of component slippage, misalignment, and fastener failure in high-stress applications.
Specification Summary & Compliance
This set screw features 5/16"-18 UNC coarse threads with Class 3A thread fit for precision tolerance. The product meets ASME B18.3 specifications and complies with ASTM F912 manufacturing standards. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring suitability for global industrial applications requiring restricted substance compliance.
