S-92240A784 5/8"-11 x 4" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments
• Exceptional load-bearing capacity thanks to 80,000 psi tensile strength and Rockwell B70 hardness
• Quick and secure installation with external hex drive and fully threaded UNC coarse thread design
• Reliable thread engagement ensured by Class 2A thread fit for consistent performance
• Heavy-duty fastening capability with 4" length and 5/8"-11 thread size for demanding applications
• Compliance with industry standards including ASME B18.2.1 for dimensional accuracy and reliability
• Environmental regulation compliance meeting RoHS 3 and REACH standards for safe usage

Professional Applications & Engineering Value

This heavy-duty hex head screw delivers exceptional engineering value in demanding industrial applications where corrosion resistance and structural integrity are paramount. The 18-8 Stainless Steel composition provides excellent protection against rust and chemical exposure, making it ideal for marine, chemical processing, and outdoor infrastructure projects. The 5/8"-11 UNC coarse thread with Class 2A fit ensures rapid installation and superior vibration resistance in heavy machinery, structural steel connections, and equipment assembly. The external hex drive design allows for high-torque application with standard tools, while the fully threaded configuration maximizes grip length and load distribution. These industrial hex screws solve critical fastening challenges by combining material durability with precision engineering for long-term reliability in the most demanding environments.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit per UNC standards with 5/8"-11 coarse thread specification and 4" length in the inch measurement system. Manufacturing complies with ASME B18.2.1 dimensional standards, ensuring interchangeability and proper fit. The product meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations for chemical safety, providing assurance for industrial applications requiring environmental compliance.