S-91375A079 2-56 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 vibration resistance with Class 3A thread fit for secure, long-term fastening in high-stress applications
- Exceptional corrosion protection from black-oxide coating, extending service life in demanding industrial environments
- High-strength durability with Rockwell C45 hardness alloy steel, resisting deformation under heavy loads
- Easy installation and removal using standard 0.035" hex drive tools, reducing assembly time and labor costs
- Optimal material penetration with cup tip design, creating positive seating and preventing component slippage
- Reliable coarse thread engagement with UNC 2-56 specification, ensuring quick assembly in various materials
- Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for global manufacturing requirements
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical performance in precision assemblies where space constraints demand headless fasteners. The Rockwell C45 hardness provides exceptional shear strength for permanent positioning applications in machinery, automotive components, and electronic enclosures. The 2-56 UNC coarse thread with Class 3A fit ensures rapid installation while maintaining tight tolerances in production environments. The cup tip configuration bites securely into shaft materials, preventing rotational movement in pulley systems, gears, and coupling applications. Hex drive compatibility with standard 0.035" tools enables efficient maintenance and disassembly cycles, reducing downtime in manufacturing and repair operations.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit precision for consistent engagement. The 2-56 UNC coarse thread maintains 0.086" major diameter with 3/8" length dimensions. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, alongside ASTM F912 material standards for guaranteed performance in industrial applications.
