S-92240A799 5/8"-11 x 1 3/4" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 Stainless Steel construction, ideal for harsh environments and outdoor applications.
• Exceptional tensile strength of 80,000 psi ensures reliable load-bearing capacity and joint integrity under high stress.
• Rockwell B70 hardness provides excellent durability and resistance to wear, deformation, and stripping during installation.
• Coarse UNC thread with Class 2A fit enables faster assembly, easier alignment, and reduced cross-threading risks.
• Full threading along the 1-3/4" length offers maximum grip and adjustability in a wide range of material thicknesses.
• External hex drive and standard hex head design allow for high-torque application using common wrenches or sockets.
• Compliance with ASME B18.2.1, RoHS 3, and REACH ensures consistent quality, safety, and environmental responsibility.

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this 5/8"-11 UNC hex head screw delivers reliable performance in machinery assembly, structural frameworks, and heavy equipment. The 18-8 Stainless Steel material offers excellent corrosion resistance, making it suitable for use in chemical plants, marine settings, and food processing facilities where moisture and corrosive agents are present. Its coarse thread design ensures quick installation and secure fastening in wood, metal, and composite materials, reducing labor time and improving project efficiency. With a tensile strength of 80,000 psi and Rockwell B70 hardness, it withstands vibration and dynamic loads, preventing joint failure and maintenance downtime. The fully threaded shank and external hex drive provide versatility and ease of use, supporting both permanent and adjustable connections in construction, automotive, and manufacturing sectors.

Specification Summary & Compliance

This hex head screw features a 5/8"-11 UNC coarse thread with Class 2A thread fit for standard tolerance and interchangeability. It meets ASME B18.2.1 specifications for dimensional accuracy and mechanical properties. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it is free from hazardous substances and adheres to environmental regulations.