S-94495A261 5/16"-18 x 5/16" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with nylon patch thread locker prevents loosening in high-stress applications
• Superior corrosion protection from black-oxide coating extends service life in demanding environments
• Precision Class 3A thread fit ensures reliable engagement and consistent clamping force
• High-strength alloy steel construction with Rockwell C45 hardness maintains integrity under heavy loads
• Wide temperature tolerance from -70° to 250°F for stable performance across industrial conditions
• Hex drive design provides secure tool engagement and precise torque application
• Flat tip configuration delivers maximum surface contact for superior holding power

Professional Applications & Engineering Value

Engineered for critical industrial applications where vibration resistance and positional security are paramount, this black-oxide alloy steel set screw combines mechanical strength with advanced locking technology. The nylon patch thread locker embedded in the UNC coarse threads creates permanent friction that prevents back-off in machinery, automotive assemblies, and power transmission systems. The headless design with hex drive allows for flush mounting in confined spaces while maintaining accessibility for installation and removal. With Rockwell C45 hardness and Class 3A thread fit, this component delivers reliable performance in pulley systems, coupling connections, and precision equipment where movement-induced loosening would compromise operational safety and efficiency.

Specification Summary & Compliance

This 5/16"-18 UNC set screw features precision Class 3A thread fit with coarse thread spacing for optimal engagement. Manufactured to ASME B18.3 specifications (ASTM F912) with right-hand thread direction and flat tip configuration. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.