S-91375A678 7/16"-14 x 2 3/4" 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 coating, extending service life in harsh industrial environments
- Exceptional holding power from Class 3A thread fit ensuring tight, secure fastening in high-vibration applications
- Optimized torque transmission through hex drive design for reliable installation and removal
- Enhanced material strength with Rockwell C45 hardness providing consistent performance under heavy loads
- Reliable positioning with cup tip design that creates positive engagement on shaft surfaces
- Industry-standard compatibility with UNC coarse threads for easy integration into existing assemblies
- Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for global applications
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical performance in demanding industrial applications where vibration resistance and corrosion protection are paramount. The Class 3A thread fit provides precise dimensional accuracy that prevents loosening in machinery, power transmission systems, and precision equipment. Engineered with UNC coarse threads, the fastener offers superior engagement in softer materials while maintaining structural integrity. The headless design with hex drive enables flush mounting in confined spaces, making it ideal for shaft collars, gears, and pulleys where protrusion isn't feasible. The combination of Rockwell C45 hardness and specialized surface treatment ensures long-term reliability in manufacturing, automotive, and heavy equipment applications where set screw performance directly impacts operational safety and maintenance intervals.
Specification Summary & Compliance
This 7/16"-14 UNC set screw features precision Class 3A thread fit with coarse thread spacing, manufactured to ASME B18.3 specifications where applicable per ASTM F912. The component maintains dimensional accuracy with 2 3/4" length and 0.438" thread diameter. Compliance certifications include RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, ensuring environmental regulatory adherence for international industrial applications.
