S-94105A364 5/16"-18 x 7/8" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating for extended service life in demanding industrial environments
• Exceptional thread engagement with Class 3A fit ensuring secure, vibration-resistant fastening in critical applications
• High-strength performance from alloy steel construction with Rockwell C45 hardness for reliable load-bearing capacity
• Optimized installation efficiency through hex drive design allowing high torque application without head protrusion
• Secure component positioning with flat tip design providing positive contact and minimal surface damage
• Reliable coarse threading with UNC 5/16"-18 specification enabling quick assembly and disassembly
• Regulatory compliance assurance meeting ASME B18.3 standards for consistent quality and performance

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers exceptional engineering value in industrial applications where vibration resistance and corrosion protection are critical. The headless design with hex drive provides flush mounting capabilities while maintaining high torque capacity, making it ideal for machinery components, automotive assemblies, and precision equipment where space constraints exist. The Class 3A thread fit ensures minimal backlash and superior clamping force retention, while the coarse UNC threads facilitate rapid installation in production environments. The Rockwell C45 hardness combined with the protective black-oxide finish creates a durable fastening solution that withstands harsh operating conditions without compromising performance.

Specification Summary & Compliance

This set screw features precise 5/16"-18 UNC Class 3A threads with coarse spacing and right-hand direction, manufactured to ASME B18.3 specifications (ASTM F912). The 7/8" length and flat tip configuration ensure consistent performance across industrial applications. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety standards are met, while the Rockwell C45 hardness rating verifies material integrity for demanding mechanical fastening requirements.