S-91385A144 6-32 x 1/4" 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 nylon patch thread locker that maintains secure fastening from -50°F to 250°F
- Superior corrosion protection through black-oxide coating on alloy steel for extended service life in harsh environments
- Maximum thread engagement with Class 3A UNC coarse threads ensuring precise fit and reliable holding power
- High-strength construction featuring Rockwell C45 hardness for exceptional durability under heavy loads
- Space-saving headless design with hex drive for flush installation in confined spaces
- Industry-standard compliance meeting ASME B18.3 specifications for consistent quality and performance
- Enhanced grip capability with cup point tip that bites into materials for superior resistance to rotation
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical performance in demanding industrial applications where vibration resistance and thermal stability are paramount. The nylon patch thread locker provides permanent locking without requiring additional adhesives, solving common loosening issues in machinery, automotive components, and precision equipment. Engineered with UNC coarse threads and Class 3A fit, it ensures optimal engagement in soft materials and blind holes while the cup point design creates positive seating that prevents slippage in high-torque applications. The hex drive headless configuration allows for complete flush mounting in space-constrained assemblies, making it ideal for shafts, collars, and gear applications where protrusion isn't feasible.
Specification Summary & Compliance
This 6-32 x 1/4" set screw features precise UNC coarse threads with Class 3A fit for superior dimensional accuracy and thread engagement. Manufactured to ASME B18.3 standards with Rockwell C45 hardness for consistent mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.
