S-91385A342 10-32 x 1/2" 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
- Vibration-resistant locking with permanent nylon patch thread locker that maintains secure fastening from -50°F to 250°F
- Superior thread engagement through Class 3A fine thread fit for precise alignment and reduced loosening in high-vibration applications
- Exceptional durability with Rockwell C45 hardness providing reliable performance under repeated assembly and disassembly
- Corrosion-resistant protection from black-oxide coating extending service life in demanding industrial environments
- Space-saving design as a headless set screw ideal for confined spaces where protruding fasteners aren't feasible
- Easy installation and removal with 3/32" hex drive allowing standard tools to access tight locations
- Secure gripping action from cup point design that bites into mating surfaces for positive positioning
Professional Applications & Engineering Value
This 10-32 UNF set screw delivers critical engineering solutions for industrial applications requiring vibration resistance and permanent fastening. The black-oxide alloy steel construction combined with nylon patch thread locker addresses common failure points in machinery, automotive, and precision equipment where thermal cycling and mechanical stress compromise fastener integrity. The Class 3A fine thread specification ensures tight tolerances for exacting assembly requirements, while the headless hex drive design enables installation in space-constrained applications. Engineers specify this cup point set screw for permanent positioning of gears, pulleys, and collars where reliable, maintenance-free performance is essential.
Specification Summary & Compliance
This precision fastener features 10-32 UNF fine threads with Class 3A thread fit for superior dimensional accuracy. Manufactured to ASME B18.3 specifications with Rockwell C45 hardness rating. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
