S-94105A576 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 for precise, vibration-resistant fastening in demanding applications
- Enhanced corrosion resistance from the black-oxide finish, extending service life in harsh industrial environments
- High-strength durability provided by alloy steel with Rockwell C45 hardness, resisting deformation under heavy loads
- Secure, flush installation with headless design and flat tip, ideal for applications requiring a smooth surface finish
- Efficient installation and removal using the 5/32" hex drive, allowing high-torque application with standard tools
- Reliable coarse threading (UNC) for quicker assembly and reduced cross-threading risks in production settings
- Broad industrial compatibility with right-hand thread direction, suitable for standard machinery and equipment
Professional Applications & Engineering Value
This 5/16"-18 UNC set screw delivers critical performance in industrial applications where secure component positioning is essential. The black-oxide alloy steel construction offers excellent resistance to wear and environmental exposure, while the Class 3A thread fit ensures tight tolerances that prevent loosening under vibration—common in machinery, motor assemblies, and precision equipment. The headless design with flat tip provides a flush finish, eliminating protrusions in confined spaces. Combined with hex drive functionality, it enables high clamping force application, making it a reliable choice for heavy-duty set screws in manufacturing and automation systems.
Specification Summary & Compliance
This set screw adheres to ASME B18.3 specifications, with a Class 3A thread fit for high precision in Unified Coarse (UNC) threading. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental and safety standards. Dimensions include a 5/16"-18 thread size, 3/8" length, and coarse thread spacing, manufactured from alloy steel with a Rockwell C45 hardness rating.
