S-92311A381 1/2"-13 x 3 1/2" 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and extended service life.
- Exceptional holding power and vibration resistance provided by the Class 3A thread fit, ensuring a secure and reliable fastening in demanding applications.
- Easy installation and high torque capability with the 1/4" hex drive, allowing for efficient assembly with standard tools.
- Enhanced grip and component security from the cup tip design, which minimizes surface damage while providing a positive locking action.
- Consistent performance and interchangeability guaranteed by compliance with the ASME B18.3 standard for dimensional accuracy.
- Safe for regulated industries as it is RoHS 3 and REACH compliant, meeting strict environmental and safety regulations.
- Optimized for quick assembly with the coarse (UNC) thread, reducing installation time in high-volume production settings.
Professional Applications & Engineering Value
This 1/2"-13 UNC set screw is engineered to solve critical challenges in machinery assembly, automotive components, and precision equipment where vibration loosening and corrosion are major concerns. The 18-8 Stainless Steel material offers excellent resistance to rust and chemical exposure, while the Rockwell B80 hardness ensures the screw maintains its form under stress without deforming. The headless design and cup tip provide a flush finish and concentrated point contact, preventing shaft slippage and securing collars, gears, and pulleys effectively in right-hand thread applications. Its coarse thread spacing allows for rapid installation, making it a reliable choice for industrial set screws used in heavy-duty manufacturing and maintenance operations.
Specification Summary & Compliance
This set screw features a 1/2"-13 UNC thread with a Class 3A thread fit for high precision and tight tolerances. It is manufactured in accordance with ASME B18.3 specifications, ensuring dimensional consistency and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its safety for use in environmentally sensitive and regulated industries.
