S-91375A208 8-36 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
- Superior corrosion resistance with black-oxide coating, extending service life in harsh industrial environments
- Precise Class 3A thread fit ensures tighter tolerances and more reliable fastening than standard Class 2A threads
- High-strength alloy steel construction with Rockwell C45 hardness provides excellent durability and resistance to wear
- Headless design with 5/64" hex drive allows for flush mounting in space-constrained applications
- Cup tip design creates positive locking action and minimizes component surface damage
- Fine UNF threads deliver enhanced vibration resistance and superior clamping force distribution
- Full regulatory compliance meets ASME B18.3, ASTM F912, RoHS 3, and REACH standards for global acceptance
Professional Applications & Engineering Value
This 8-36 UNF Class 3A black-oxide alloy steel set screw addresses critical engineering challenges in precision assembly applications. The headless design with 5/64" hex drive provides optimal solutions for machinery where protruding fastener heads would interfere with moving components or require minimal clearance. The fine UNF threads combined with Class 3A thread fit ensure superior vibration resistance in high-speed equipment, while the cup tip creates secure locking without damaging shaft surfaces. The black-oxide coating on alloy steel substrate offers reliable corrosion protection for industrial environments where moisture or chemical exposure is a concern. These features make this set screw ideal for precision instruments, automotive components, and manufacturing equipment requiring dependable, long-term fastening solutions.
Specification Summary & Compliance
This precision fastener features 8-36 UNF fine threads with Class 3A thread fit for superior dimensional accuracy, manufactured to ASME B18.3 specifications and ASTM F912 material standards. The 0.164" thread diameter and 1/2" length provide consistent performance across applications. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global markets.
