S-94105A715 1/2"-13 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 from black-oxide coating, extending service life in demanding environments
- Exceptional thread precision with Class 3A fit ensures reliable, vibration-resistant fastening in critical assemblies
- High-strength performance with Rockwell C45 hardness rating for maximum load-bearing capacity
- Optimized installation efficiency through 1/4" hex drive design providing secure tool engagement
- Enhanced mechanical stability from coarse UNC threads that resist loosening under dynamic loads
- Space-saving headless design allows flush mounting where clearance is limited
- Regulatory compliance assurance meeting international standards for quality and environmental safety
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical engineering solutions for industrial equipment requiring permanent, high-strength fastening. The Class 3A thread fit provides superior dimensional accuracy that prevents backlash in precision machinery, while the coarse UNC threading maintains holding power in high-vibration environments like motor mounts and rotating assemblies. The headless configuration with 1/4" hex drive enables installation in confined spaces where traditional fasteners cannot operate, making it ideal for coupling collars, shaft positioning, and alignment-critical applications. Combined with the hardened Rockwell C45 material properties, this set screw resists deformation under extreme clamping forces, ensuring long-term reliability in manufacturing, automotive, and heavy equipment sectors.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread tolerances for precision fit. The 1/2"-13 UNC coarse thread configuration meets standardized dimensional requirements, while material certification complies with ASTM F912. Full regulatory compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards ensures global acceptability for industrial applications.
