S-91375A228 8-36 x 5/8" 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
- Superior corrosion resistance with black-oxide coating, extending service life in harsh industrial environments
- Precise Class 3A thread fit ensures tight, secure fastening with minimal backlash in critical assemblies
- High-strength alloy steel construction with Rockwell C45 hardness provides excellent wear resistance and durability
- Compact headless design allows for flush mounting in space-constrained applications
- Fine UNF threads deliver enhanced vibration resistance and superior holding power
- Cup tip configuration creates positive engagement and prevents component slippage
- 5/64" hex drive enables efficient installation with standard industrial tools
Professional Applications & Engineering Value
This black-oxide alloy steel set screw addresses critical engineering challenges in precision manufacturing and assembly operations. The Class 3A thread fit provides exceptional dimensional accuracy for applications requiring zero tolerance variations, while the fine UNF threads maintain secure fastening under continuous vibration. The headless design with cup tip ensures flush mounting in rotating components and shafts, preventing interference while creating positive mechanical locking. The Rockwell C45 hardness combined with black-oxide surface treatment offers superior protection against corrosion and wear in demanding industrial environments, making these set screws ideal for precision machinery, automotive systems, and high-vibration equipment where reliability is paramount.
Specification Summary & Compliance
Manufactured to exacting ASME B18.3 standards with Class 3A thread fit precision and 8-36 UNF fine threads. The 5/8" length and 5/64" hex drive conform to industrial specifications for dimensional consistency. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. The black-oxide alloy steel construction meets ASTM F912 specifications for material quality and performance reliability.
