S-91375A857 3/4"-16 x 1" 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 for extended service life in harsh industrial environments
- Exceptional holding power from Rockwell C45 hardness alloy steel construction for heavy-duty applications
- Precise thread engagement with Class 3A UNF fine threads ensuring reliable, vibration-resistant fastening
- Easy installation and removal through 3/8" hex drive design in headless configuration for space-constrained assemblies
- Enhanced grip and positioning with cup point tip that bites into mating surfaces without slipping
- Industry-standard compatibility meeting ASME B18.3 and ASTM F912 specifications for guaranteed performance
- Environmental compliance with RoHS 3 and REACH regulations for safe, sustainable manufacturing
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical engineering solutions where vibration resistance and permanent positioning are paramount. The Class 3A UNF fine threads provide superior clamping force in precision assemblies, while the cup point design creates permanent seating in shafts, collars, and pulleys. Manufactured from Rockwell C45 hardened alloy steel, it withstands extreme mechanical stresses in heavy machinery, automotive systems, and industrial equipment. The headless configuration with hex drive enables installation in confined spaces where conventional fasteners cannot operate, making it ideal for permanent assemblies requiring zero protrusion and maximum security.
Specification Summary & Compliance
This 3/4"-16 UNF set screw maintains Class 3A thread fit tolerances for precision assembly applications. Manufactured to ASME B18.3 specifications and ASTM F912 material standards, it ensures consistent performance across industrial applications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, containing no restricted substances above threshold limits. All dimensions conform to inch system requirements with 1" length and 3/8" hex drive specifications.
