S-91418A632 3/8"-16 x 2" ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Maximum torque transmission through the external square drive design, preventing tool slippage during high-stress applications
• Superior corrosion resistance with black-oxide coating on alloy steel, extending service life in harsh industrial environments
• Precise thread engagement with Class 2A thread fit ensuring reliable fastening and vibration resistance
• Enhanced tip penetration from the extended tip design (0.094" length) for secure component positioning
• Exceptional mechanical strength with Rockwell C45 hardness, maintaining structural integrity under heavy loads
• Industry-standard compatibility through UNC coarse threading (3/8"-16) for easy installation and replacement
• Regulatory compliance assurance meeting ASTM F912, RoHS 3, and REACH standards for quality and environmental safety

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this square head set screw delivers exceptional performance in power transmission systems, machinery assemblies, and precision equipment. The black-oxide alloy steel construction provides superior corrosion protection while maintaining the Rockwell C45 hardness required for high-strength fastening. The extended tip design ensures maximum contact surface for secure component positioning, preventing axial movement in rotating assemblies. With UNC coarse threading and Class 2A thread fit, installation becomes more efficient while maintaining precise tolerances. The external square drive configuration allows for high-torque application without cam-out, making it ideal for maintenance-heavy environments where reliability is paramount.

Specification Summary & Compliance

This 3/8"-16 UNC set screw maintains precise dimensional accuracy with Class 2A thread fit per ASME B1.1 standards, ensuring consistent performance across industrial applications. The manufacturing process adheres to ASTM F912 specifications for quality assurance, while environmental compliance is verified through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) certifications. Thread specifications include right-hand direction with coarse spacing, complemented by tight tolerances on the extended tip (diameter: 0.25" ±0.009", length: 0.094" ±0.005") for reliable performance in precision assemblies.