S-92800A421 5/8"-18 x 3" 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments.
• High tensile strength of 80,000 psi ensures reliable performance under heavy loads and vibration.
• Rockwell B70 hardness provides superior wear resistance and durability for long service life.
• Class 2A fine UNF thread fit offers precise, secure fastening with reduced risk of cross-threading.
• External hex drive design allows for easy installation and removal with standard tools.
• Fully threaded shank maximizes grip and load distribution across the entire length.
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and global market acceptance.

Professional Applications & Engineering Value

This 5/8"-18 UNF hex head screw is engineered from 18-8 Stainless Steel to deliver outstanding corrosion resistance and mechanical strength, making it ideal for demanding applications in construction, machinery assembly, and marine equipment. The fine thread and Class 2A fit provide excellent vibration resistance and secure fastening in high-stress environments. With an external hex drive, installation is straightforward using common wrenches, reducing assembly time and improving efficiency. Its fully threaded design ensures uniform load bearing, preventing loosening and enhancing structural integrity in heavy-duty industrial settings.

Specification Summary & Compliance

This screw features a 5/8"-18 UNF fine thread with Class 2A tolerance for precise fit, a length of 3 inches, and is fully threaded. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety standards for industrial use.