S-91381A616 3/8"-16 x 5/16" 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 surface protection with a brass soft tip that prevents damage to mating components during installation and adjustment.
- Exceptional holding power ensured by Class 3A thread fit, providing tighter tolerances for secure fastening in demanding applications.
- High durability and corrosion resistance from black-oxide alloy steel construction with Rockwell C28 hardness for long service life.
- Easy installation and removal with a 3/16" hex drive, allowing for efficient assembly using standard tools.
- Reliable performance in industrial settings due to coarse UNC threads and right-hand direction, ideal for high-vibration environments.
- Precision engineering compliance meeting ASME B18.3 standards, ensuring consistent quality and interchangeability.
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance, supporting sustainable procurement practices.
Professional Applications & Engineering Value
This 3/8"-16 UNC set screw is engineered to address common industrial challenges, such as component slippage and surface damage. The black-oxide alloy steel material offers enhanced strength and corrosion resistance, while the brass soft tip provides a non-marring surface contact, ideal for protecting precision machinery, shafts, and collars. With a Class 3A thread fit and coarse thread design, it ensures reliable clamping force in high-stress applications, reducing maintenance needs. Commonly used in automotive, aerospace, and heavy machinery assemblies, this headless set screw with a hex drive simplifies installation in confined spaces, boosting productivity and assembly integrity.
Specification Summary & Compliance
This set screw features a 3/8"-16 UNC thread with Class 3A fit for precise dimensional accuracy, a length of 5/16", and a thread diameter of 0.375". 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.
