S-95289A425 5/16"-18 x 3/4" 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 holding power with Class 3A thread fit ensuring tight, reliable connections in demanding applications
- Exceptional durability from Rockwell C45 hardness alloy steel, resisting wear and deformation under high stress
- Enhanced grip and alignment with extended tip design, reducing component slippage and improving assembly precision
- Corrosion-resistant protection via black oxide finish, extending service life in various industrial environments
- Easy installation and removal with 5/32" hex drive, allowing efficient maintenance with standard tools
- Wide compatibility with 5/16"-18 UNC coarse threads, suitable for common machinery and equipment assemblies
- Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for safe, global usage
Professional Applications & Engineering Value
This 5/16"-18 UNC set screw delivers critical performance in industrial fastening where vibration resistance and positional security are paramount. The black oxide alloy steel construction combined with Class 3A thread fit prevents loosening in high-torque applications like motor shafts, gear assemblies, and precision machinery. The extended tip design bites deeply into components, eliminating play and maintaining alignment under dynamic loads. Engineered to ASME B18.3 specifications, it ensures dimensional consistency for repeatable installations. Ideal for heavy-duty equipment and automated systems, this headless set screw provides a flush, space-saving solution while the coarse thread facilitates quick assembly in production environments.
Specification Summary & Compliance
This set screw features precise Class 3A thread fit per UNC standards with 5/16"-18 coarse threading. Dimensions include 3/4" length, 5/32" hex drive, and extended tip with diameter 0.203" and length 0.164" within specified tolerances. Manufactured from alloy steel hardened to Rockwell C45 for optimal strength. Fully compliant with ASME B18.3 manufacturing specifications, RoHS 3 (2015/863/EU) for hazardous substance restrictions, and REACH (EC 1907/2006) regulations for chemical safety.
