S-92505A576 5/16"-18 x 3/8" 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
- Enhanced corrosion resistance from black oxide coating, extending service life in industrial environments
- High-strength durability with Rockwell C45 hardness alloy steel construction resisting deformation under heavy loads
- Secure installation and removal via 5/32" hex drive design preventing tool slippage and damage
- Precise component positioning with extended tip design (0.082" length) for accurate alignment and grip
- Broad compatibility with UNC coarse threads (5/16"-18) fitting standard industrial components
- Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for global supply chain integration
Professional Applications & Engineering Value
This black oxide alloy steel set screw delivers critical performance in precision assembly applications where vibration resistance and positional accuracy are paramount. The headless design with hex drive allows flush mounting in confined spaces while maintaining high torque capability. Engineered with Class 3A thread fit and coarse UNC threading, it provides exceptional clamping force for securing collars, gears, and pulleys on shafts in automotive, machinery, and manufacturing equipment. The extended tip configuration bites deeply into mating surfaces, preventing rotational slippage even under continuous operational stress. This combination of material strength (Rockwell C45), corrosion-resistant coating, and precision threading addresses common failure points in industrial fastening systems.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread tolerance for precision fit. Features 5/16"-18 UNC coarse threads with right-hand direction. Tip dimensions maintained at 0.082" length (-0.005" to 0" tolerance) and 0.203" diameter (-0.008" to 0" tolerance). Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for safe industrial use.
