S-94105A368 5/16"-18 x 2" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from the Black-Oxide finish, extending service life in demanding industrial environments.
• Exceptional mechanical strength and wear resistance due to the Alloy Steel construction and Rockwell C45 hardness.
• Precise and secure fastening ensured by the Class 3A thread fit, minimizing the risk of loosening under vibration.
• High-torque installation capability with the 5/32" hex drive, allowing for a secure and flush headless design.
• Reliable performance in coarse-thread applications with the 5/16"-18 UNC thread, ideal for quick assembly and softer materials.
• Versatile flat tip design provides excellent surface contact and gripping power for positioning components.
• Guaranteed quality and safety through compliance with ASME B18.3, RoHS 3, and REACH standards.

Professional Applications & Engineering Value

This Black-Oxide Alloy Steel set screw is engineered to solve critical challenges in industrial assembly and machinery. Its headless, hex drive design allows for a flush installation, making it ideal for applications where protruding fastener heads are not feasible. The Class 3A thread fit on the 5/16"-18 UNC coarse thread provides a tighter tolerance than standard fits, significantly reducing the risk of vibrational loosening in motors, pulleys, and gear assemblies. The Rockwell C45 hardness ensures the screw can withstand high shear and clamping forces without deforming, while the Black-Oxide surface treatment offers a durable layer of protection against rust and corrosion, enhancing longevity in harsh operating conditions. This combination of precision, strength, and durability delivers reliable performance for securing collars, knobs, and other components onto shafts.

Specification Summary & Compliance

This set screw features a 5/16"-18 UNC coarse thread with a precision Class 3A thread fit for superior engagement. It is manufactured from Alloy Steel to ASME B18.3 specifications, ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it a safe and responsible choice for global industrial supply chains.