S-92198A806 5/8"-11 x 3" 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 environments and reducing maintenance costs.
• High tensile strength of 80,000 PSI ensures reliable performance under heavy loads and vibration, minimizing failure risks.
• Rockwell B70 hardness provides excellent durability and wear resistance for extended service life.
• Coarse UNC threading and Class 2A fit allow for faster assembly and easier alignment, improving installation efficiency.
• Partial threading design offers optimal grip and clamping force for specific joint requirements.
• External hex drive and standard head dimensions ensure compatibility with common tools, streamlining workflow.
• Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees quality, safety, and environmental standards for global industrial use.

Professional Applications & Engineering Value

This 5/8"-11 UNC hex head screw is engineered to address common industrial challenges such as corrosion, high stress, and assembly speed. The 18-8 stainless steel material provides inherent resistance to rust and chemicals, making it suitable for outdoor, marine, and chemical processing applications where moisture exposure is a concern. Its coarse thread and partial threading enhance grip in softer materials or where vibration resistance is critical, reducing the risk of loosening over time. With an external hex drive and standardized dimensions, it integrates seamlessly into existing systems, supporting efficient maintenance and production lines. Ideal for heavy machinery, structural frameworks, and equipment requiring high tensile strength and durability, this screw delivers consistent performance while meeting rigorous industry specifications.

Specification Summary & Compliance

This product adheres to precise dimensional tolerances, including a Class 2A thread fit for consistent engagement and UNC coarse threads per standard inch measurements. It conforms to ASME B18.2.1 for mechanical and dimensional properties, ensuring reliability in industrial fastening. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, verifying the absence of hazardous substances and supporting sustainable procurement practices.