S-91418A722 1/2"-13 x 2 1/2" ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating for extended service life in harsh industrial environments
• Exceptional mechanical strength from alloy steel construction with Rockwell C45 hardness for reliable, long-term fastening
• Precise thread engagement with Class 2A UNC coarse threads ensuring consistent fit and reduced cross-threading risks
• Enhanced torque transmission through square head design for secure installation with standard tools
• Improved locking capability with extended tip design providing better contact and vibration resistance
• Wide industrial compatibility with inch measurements and right-hand threading meeting North American specifications
• Regulatory compliance assurance meeting ASTM F912 standards and environmental regulations for global applications

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers critical performance in demanding applications where vibration resistance and precise positioning are paramount. The extended tip design creates deeper penetration into mating surfaces, effectively preventing component slippage in machinery, power transmission systems, and industrial equipment. The UNC coarse threading provides rapid installation while maintaining Class 2A thread fit precision, reducing assembly time without compromising reliability. The square head configuration offers superior torque transmission compared to standard fasteners, making it ideal for high-stress applications requiring frequent adjustments or maintenance. Engineered for industrial set screw applications, this fastener maintains integrity under continuous mechanical stress while the black-oxide surface treatment resists corrosion in challenging operational environments.

Specification Summary & Compliance

This set screw features 1/2"-13 UNC coarse threads with Class 2A thread fit tolerance for precise engagement. The extended tip maintains tight dimensional control with tip length tolerance of -0.005" to 0.005" and tip diameter tolerance of -0.009" to 0". Manufacturing complies with ASTM F912 specifications for quality assurance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting international environmental regulations for hazardous substance restrictions.