S-91385A168 3/8"-24 x 2" 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
- Superior vibration resistance with permanent nylon patch thread locker that maintains secure fastening in high-stress environments
- Exceptional durability through Rockwell C45 hardened alloy steel construction for long service life under heavy loads
- Reliable temperature performance with thread locker effective from -50°F to 250°F for diverse industrial applications
- Precise thread engagement with UNF fine Class 3A threads ensuring tight tolerances and minimal backlash
- Enhanced corrosion protection from black-oxide surface treatment extending component lifespan in demanding conditions
- Optimized installation torque with 3/16" hex drive providing secure tool engagement and reduced stripping risk
- Secure mechanical locking through cup point design that bites into mating surfaces for permanent positioning
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical engineering solutions for industrial applications requiring permanent component positioning. The UNF fine thread Class 3A specification ensures precise fitment in high-vibration environments like machinery, automotive assemblies, and precision equipment. The nylon patch thread locker provides chemical-free vibration resistance without compromising the alloy steel's structural integrity, while the cup point design creates positive mechanical locking by embedding into mating surfaces. Engineered to withstand extreme temperature fluctuations from -50°F to 250°F, this headless set screw maintains reliable performance in thermal cycling applications where traditional fasteners might fail.
Specification Summary & Compliance
Manufactured to ASME B18.3 standards with Class 3A thread fit for superior precision. Features UNF fine thread (3/8"-24) with right-hand direction and 2" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The Rockwell C45 hardness ensures mechanical strength while the black-oxide finish provides additional corrosion protection.
