S-91385A617 3/8"-16 x 3/8" 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
- Vibration-resistant locking with permanent Nylon Patch thread locker maintains secure fastening from -50°F to 250°F, preventing loosening in demanding environments
- Superior corrosion protection through Black-Oxide coating on Alloy Steel extends service life in industrial applications
- Precision Class 3A thread fit ensures tight tolerances and reliable engagement for maximum holding power
- High-strength construction with Rockwell C45 hardness provides exceptional durability and resistance to wear
- Secure installation using 3/16" hex drive in headless design allows flush mounting while preventing tampering
- Enhanced grip capability with cup point tip creates positive seating and resistance to rotational forces
- Industry compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for quality and environmental safety
Professional Applications & Engineering Value
This 3/8"-16 UNC hex headless set screw delivers critical engineering solutions for industrial assembly challenges where vibration resistance and permanent positioning are paramount. The Black-Oxide Alloy Steel construction combined with Rockwell C45 hardness ensures exceptional durability against mechanical stress and environmental factors. The integrated Nylon Patch thread locker maintains locking effectiveness across extreme temperature ranges from -50°F to 250°F, preventing costly downtime from fastener loosening in machinery, automotive components, and precision equipment. The cup point design bites securely into mating surfaces, providing superior resistance to rotational forces in pulley systems, couplings, and gear assemblies where reliable torque transmission is essential.
Specification Summary & Compliance
Manufactured to Class 3A thread fit with UNC coarse threads for optimal engagement strength. Complies with ASME B18.3 dimensional specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. Features right-hand thread direction with 3/8"-16 thread size and 3/16" hex drive for standardized installation.
