S-94105A421 5/8"-11 x 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
- Maximum holding power with Class 3A thread fit for secure, vibration-resistant fastening in demanding applications
- Superior torque transmission through the 5/16" hex drive design, allowing for high installation force without stripping
- Enhanced corrosion resistance from the black-oxide finish on alloy steel, extending service life in industrial environments
- Exceptional durability with Rockwell C45 hardness, maintaining thread integrity under heavy loads and repeated use
- Reliable coarse threading (5/8"-11 UNC) for quicker installation and reduced cross-threading risk in assembly lines
- Precision flat tip design ensures concentrated contact pressure for minimal component marring and stable positioning
- Broad compliance with ASME B18.3, RoHS 3, and REACH standards, ensuring safety and regulatory acceptance globally
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this 5/8"-11 UNC set screw delivers reliable performance in machinery, automotive, and construction sectors where vibration loosening is a critical concern. The black-oxide alloy steel construction resists rust and wear, while the Class 3A thread fit and coarse thread spacing provide tight tolerances for secure shaft collars, gears, and pulley assemblies. Its headless hex drive design allows flush mounting in confined spaces, and the flat tip distributes force evenly to prevent damage to precision components. Ideal for OEMs and maintenance teams seeking ASME B18.3 compliant fasteners that reduce downtime and ensure long-term operational stability.
Specification Summary & Compliance
This set screw adheres to Class 3A thread fit per UNC standards, with a diameter of 0.625" and coarse 11 TPI spacing for precise engagement. Manufacturing follows ASME B18.3 specifications (referencing ASTM F912), and it is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting environmental and safety regulations for industrial use.
