S-92198A805 5/8"-11 x 2 3/4" ASME B18.2.1 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 environments and reducing replacement frequency
• High tensile strength of 80,000 PSI ensures reliable load-bearing capacity and joint integrity under significant stress
• Rockwell B70 hardness provides excellent durability and resistance to wear, extending the screw's service life
• Partially threaded design allows for secure clamping on specific sections, preventing over-tightening and material damage
• External hex drive and hex head facilitate easy installation and removal with standard tools, improving assembly efficiency
• Coarse UNC threads with Class 2A fit offer quick engagement and reliable fastening in a wide range of materials
• Compliance with ASME B18.2.1, RoHS 3, and REACH ensures consistent quality, safety, and environmental responsibility

Professional Applications & Engineering Value

This 5/8"-11 UNC hex head screw is engineered to address common industrial challenges, such as vibration loosening and corrosion-induced failure. The 18-8 Stainless Steel material provides superior resistance to rust and chemicals, making it suitable for demanding applications in marine, chemical processing, and outdoor construction. Its partially threaded configuration ensures that the unthreaded shank bears shear loads effectively, while the threaded portion delivers strong tensile holding power. With an external hex drive, it allows for high-torque installation, reducing the risk of stripping and ensuring secure connections in heavy machinery, structural frameworks, and equipment assembly. The coarse thread design enables faster installation and reliable performance in softer materials or where debris is present, minimizing downtime and maintenance costs.

Specification Summary & Compliance

This screw features a 5/8"-11 UNC thread size with Class 2A thread fit, ensuring precise dimensional accuracy and interchangeability. It meets ASME B18.2.1 specifications for hex head screws, guaranteeing consistent manufacturing quality. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards without hazardous substances.