S-93190A858 5/8"-11 x 4" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and stress
• Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
• Coarse UNC thread and Class 2A fit enable quick assembly and a secure, vibration-resistant grip
• Fully threaded design offers maximum holding power along the entire 4" length
• External hex drive head allows for easy installation and removal with standard tools
• Compliance with major industry standards including ASME B18.2.1, RoHS 3, and REACH guarantees quality and safety

Professional Applications & Engineering Value

This 5/8"-11 UNC hex head screw is engineered to solve critical challenges in demanding industrial settings. The 316 stainless steel material offers exceptional resistance to corrosion from chemicals, saltwater, and extreme weather, making it ideal for marine, chemical processing, and outdoor infrastructure applications. The coarse thread and Class 2A thread fit provide faster installation and superior holding power in materials where fine threads might strip or fail. With a fully threaded 4" length and external hex drive, it ensures uniform stress distribution and easy access for maintenance in tight spaces, reducing downtime and enhancing the longevity of assembled structures.

Specification Summary & Compliance

This hex head screw features a 5/8"-11 UNC thread with a Class 2A fit for consistent dimensional accuracy. It is manufactured in accordance with ASME B18.2.1 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use.