S-94105A534 1/4"-20 x 5/16" 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 strength with Class 3A thread fit for reliable, vibration-resistant fastening in demanding applications.
- Enhanced corrosion resistance from the black-oxide coating, extending service life in harsh industrial environments.
- High durability and wear resistance provided by alloy steel with Rockwell C45 hardness, reducing the need for frequent replacements.
- Secure and easy installation using the 1/8" hex drive, allowing for high torque application without head protrusion.
- Wide compatibility with coarse UNC 1/4"-20 threads, ensuring easy engagement and disassembly in various assemblies.
- Flush mounting capability due to the headless design and flat tip, ideal for applications where a smooth surface is critical.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, guaranteeing safety and regulatory adherence.
Professional Applications & Engineering Value
This 1/4-20 UNC set screw is engineered to address common industrial challenges such as component slippage and corrosion-induced failure. Constructed from black-oxide alloy steel, it offers excellent resistance to rust and wear, making it suitable for machinery, automotive, and precision equipment where high-strength fastening is essential. The Class 3A thread fit and coarse thread spacing ensure tight tolerances and quick assembly, reducing installation time and maintenance costs. Its headless design and flat tip provide a secure, flush fit, preventing interference in compact spaces. Ideal for securing gears, pulleys, and collars, this screw delivers reliable performance in right-hand thread applications, supported by compliance with ASME B18.3 standards for consistent quality.
Specification Summary & Compliance
This set screw features a 1/4"-20 UNC thread with Class 3A fit for precise dimensional accuracy and coarse spacing. It meets ASME B18.3 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.
