S-92198A705 5/16"-18 x 5 1/2" 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.
• High tensile strength of 80,000 psi ensures reliable performance under heavy loads and vibrations.
• Rockwell B70 hardness provides excellent durability and resistance to wear and deformation.
• Coarse UNC thread and Class 2A fit offer quick assembly and secure fastening in a wide range of materials.
• Partially threaded design allows for precise clamping force control and reduced thread galling.
• External hex drive and hex head enable easy installation with standard tools, minimizing installation time.
• Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees quality, safety, and environmental standards.

Professional Applications & Engineering Value

This 5/16"-18 UNC hex head screw is engineered to address critical challenges in industrial assembly, such as corrosion, high stress, and regulatory compliance. The 18-8 Stainless Steel material offers exceptional resistance to rust and chemicals, making it suitable for outdoor, marine, and chemical processing applications. Its coarse thread and Class 2A thread fit ensure easy starts and reliable engagement in soft or coarse materials, reducing the risk of cross-threading. The partially threaded design concentrates clamping force where needed, preventing joint loosening in dynamic environments. With an external hex drive, it allows for high-torque installation, ideal for machinery, construction, and heavy equipment where durability and fast assembly are paramount. This screw meets ASME B18.2.1 standards, ensuring dimensional accuracy and interoperability in professional settings.

Specification Summary & Compliance

This product features a 5/16"-18 UNC coarse thread with Class 2A tolerance for precise fit and ease of assembly. It is manufactured in accordance with ASME B18.2.1 specifications, ensuring consistent quality and performance. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms it is free from hazardous substances, supporting environmental and safety standards in global supply chains.