S-95289A668 5/8"-11 x 1 1/2" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Maximum holding power with Class 3A thread fit ensuring precise, secure fastening in demanding applications
• Superior corrosion resistance thanks to the black oxide finish on alloy steel, extending service life in harsh environments
• Enhanced tip engagement with extended tip design providing deeper penetration and improved resistance to vibration loosening
• Exceptional durability from Rockwell C45 hardness, maintaining structural integrity under high stress and repeated use
• Easy installation and removal with 5/16" hex drive, allowing efficient tool access even in confined spaces
• Reliable coarse thread performance with UNC 5/8"-11 threads offering quick assembly and strong holding in various materials
• Broad industrial compliance meeting ASME B18.3, RoHS 3, and REACH standards for safe, regulated use

Professional Applications & Engineering Value

This 5/8"-11 UNC set screw is engineered to address critical challenges in industrial machinery, automotive assemblies, and heavy equipment where vibration resistance and positional security are paramount. The black oxide alloy steel construction provides excellent corrosion protection, reducing maintenance needs in humid or abrasive conditions. Its extended tip design ensures deeper material engagement, preventing slippage in high-torque applications like shaft collars and gear hubs. With coarse thread spacing and Class 3A thread fit, it delivers rapid installation and reliable clamping force, minimizing assembly time while maximizing operational safety. Ideal for permanent or semi-permanent fastening in right-hand thread systems, this screw offers a robust solution for engineers seeking durability and compliance in inch-based measurements.

Specification Summary & Compliance

This set screw adheres to Class 3A thread fit tolerances for high precision, with UNC 5/8"-11 coarse threads ensuring consistent performance. Manufactured to meet ASME B18.3 specifications, it guarantees dimensional accuracy and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance adherence. Additional features include a tip diameter of 0.468" with tight tolerances and Rockwell C45 hardness for sustained mechanical strength in industrial settings.