S-90289A705 1/2"-13 x 3/8" ASME B18.3 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 corrosion resistance with black-oxide coating, extending service life in harsh industrial environments.
- High-strength alloy steel construction with Rockwell C45 hardness for reliable, long-term holding power under heavy loads.
- Precise Class 3A thread fit ensures tight, secure fastening with minimal backlash in critical assemblies.
- 1/4" hex drive design allows for easy installation and high torque application with standard tools.
- Cup tip with serrations provides excellent grip and resistance to loosening from vibration.
- Coarse UNC threads enable quick assembly and disassembly, reducing maintenance time.
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees quality and environmental safety for global projects.
Professional Applications & Engineering Value
This black-oxide alloy steel set screw is engineered to address common industrial challenges like vibration-induced loosening and corrosion in demanding applications. Its headless design and 1/4" hex drive make it ideal for confined spaces in machinery, automotive components, and heavy equipment, where a low-profile, high-strength fastener is essential. The UNC coarse threads and Class 3A fit ensure rapid, secure installation, reducing assembly time while maintaining precision. With a cup tip and serrations, it delivers superior clamping force, preventing slippage in pulleys, gears, and collars. Made from alloy steel with Rockwell C45 hardness, it offers exceptional durability, making it a reliable choice for engineers seeking long-term performance in industrial set screw applications.
Specification Summary & Compliance
This set screw features a 1/2"-13 UNC coarse thread with Class 3A fit for high precision, a length of 3/8", and a right-hand thread direction. It complies with ASME B18.3 manufacturing standards and is certified RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring adherence to environmental and safety regulations for industrial use.
