S-91943A648 1/2"-13 x 1" 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 Rockwell C39 hardness alloy steel construction, preventing deformation under heavy loads
- Permanent swivel tip technology maintains consistent contact pressure at up to 9° angles, reducing component wear
- Precise Class 2A thread fit ensures smooth installation and reliable positioning in UNC coarse threaded applications
- Headless hex drive design allows flush mounting in confined spaces while providing secure 1/4" drive engagement
- Regulatory compliance assurance with RoHS 3 and REACH standards, meeting international environmental requirements
- Optimized for high-vibration applications through right-hand coarse threading that resists loosening
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical engineering advantages in demanding industrial applications. The permanent swivel tip with 9° maximum angular compensation solves alignment challenges in rotating assemblies, while the Rockwell C39 hardness provides exceptional resistance to embedding and deformation. The UNC coarse thread configuration combined with Class 2A thread fit ensures rapid installation in production environments while maintaining precise component positioning. Ideal for securing gears, pulleys, and collars on shafts, this headless hex drive set screw offers reliable performance in machinery, automotive, and heavy equipment applications where vibration resistance and corrosion protection are paramount.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerance for unified coarse (UNC) 1/2"-13 threading. Features 1" length, 0.5" thread diameter, and 1/4" hex drive configuration. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The permanent swivel tip maintains 0.29" diameter contact surface with alloy steel construction for consistent performance across industrial applications.
