S-91375A462 3/4"-16 x 1 1/4" 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 finish for extended service life in demanding industrial environments
- Exceptional thread precision with Class 3A fit ensures secure, vibration-resistant fastening in critical applications
- Maximum torque transmission through 3/8" hex drive design for reliable installation and removal
- Enhanced material strength with Rockwell C45 hardness rating prevents stripping and maintains structural integrity
- Optimal gripping performance from cup point tip design that bites into shafts for permanent positioning
- Space-saving headless configuration allows for flush mounting in confined assembly spaces
- Regulatory compliance assurance meeting ASME B18.3, ASTM F912, RoHS 3, and REACH standards for global applications
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical engineering solutions for industrial applications requiring permanent component positioning. The 3/4"-16 UNF fine thread with Class 3A precision fit eliminates backlash in high-vibration environments, while the cup point tip creates superior bite on shafts and rotating components. The headless design enables flush installation in space-constrained assemblies, making it ideal for machinery, automotive systems, and precision equipment. With Rockwell C45 hardness, this fastener maintains dimensional stability under heavy loads, and the black-oxide surface treatment provides essential corrosion protection in harsh operating conditions, ensuring long-term reliability in demanding industrial settings.
Specification Summary & Compliance
This set screw features 3/4"-16 UNF fine threads with Class 3A thread fit for precision applications, manufactured to ASME B18.3 specifications and ASTM F912 material standards. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global markets. The right-hand thread direction and 1-1/4" length provide standardized installation across industrial applications.
