S-92240A585 5/16"-18 x 1 1/4" 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 and outdoor applications.
• Exceptional tensile strength of 80,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
• Fully threaded design provides maximum grip and holding power across the entire length, enhancing joint stability.
• Coarse UNC threads with Class 2A fit allow for quick assembly and disassembly, minimizing installation time and labor costs.
• External hex drive and hex head offer easy torque application with standard tools, improving efficiency in maintenance and assembly lines.
• High hardness (Rockwell B70) resists wear and deformation, extending service life in repetitive or vibrating applications.
• Compliance with ASME B18.2.1 ensures dimensional accuracy and interchangeability, supporting seamless integration into existing systems.

Professional Applications & Engineering Value

This 5/16"-18 UNC hex head screw is engineered to address common industrial challenges, such as corrosion-induced failures and assembly inefficiencies. The 18-8 Stainless Steel material provides excellent resistance to rust and chemicals, making it suitable for marine, chemical processing, and food industry applications where moisture exposure is frequent. The fully threaded coarse thread design ensures rapid installation and robust clamping force, reducing the need for frequent retightening in vibrating machinery. With an external hex drive, it allows for high-torque applications using common wrenches, streamlining maintenance workflows. Ideal for heavy-duty assemblies, this screw delivers reliable performance in structural frameworks, equipment mounting, and automotive systems, enhancing operational durability while meeting stringent ASME B18.2.1 standards.

Specification Summary & Compliance

This product adheres to precise dimensional tolerances, including a Class 2A thread fit for consistent engagement and UNC coarse threading for ease of use. It conforms to ASME B18.2.1 manufacturing specifications, ensuring reliability in industrial fastening. Additionally, it is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, supporting environmental and safety regulations for global supply chains.