S-90289A632 3/8"-16 x 2" 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
- Exceptional holding power with serrations locking type and cup tip design for secure, vibration-resistant fastening in demanding applications.
- Superior corrosion resistance thanks to the black-oxide finish on alloy steel, extending service life in harsh industrial environments.
- High-strength durability with Rockwell C45 hardness, ensuring reliable performance under heavy loads and repeated use.
- Precise thread engagement with UNC coarse threads and Class 3A fit for quick assembly and reduced risk of cross-threading.
- Easy installation and removal using the hex drive design, allowing for high torque application with standard tools.
- Space-saving headless construction ideal for applications where flush mounting is required without protruding components.
- Compliance with major standards including ASME B18.3, ensuring consistent quality and interoperability in professional assemblies.
Professional Applications & Engineering Value
This 3/8"-16 UNC Class 3A set screw is engineered to address critical challenges in industrial fastening, such as vibration loosening and corrosion in machinery, automotive, and heavy equipment applications. The black-oxide alloy steel construction, combined with Rockwell C45 hardness, provides excellent wear resistance and longevity, reducing maintenance frequency. The hex drive and serrations locking type ensure a firm grip and reliable torque transmission, while the cup tip offers concentrated contact pressure for superior clamping force. Ideal for securing collars, gears, and pulleys, this headless set screw delivers consistent performance where space constraints and high-stress conditions are concerns, enhancing overall assembly integrity.
Specification Summary & Compliance
This set screw features a 3/8"-16 UNC coarse thread with Class 3A fit for precise dimensional accuracy and reliable thread engagement. It complies with ASME B18.3 specifications for consistent manufacturing quality. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence in global supply chains.
