S-92186A997 1 3/4"-5 x 7" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial and marine environments.
• High tensile strength of 70,000 psi ensures reliable performance in heavy-duty structural and machinery applications.
• Rockwell B70 hardness provides excellent durability and resistance to wear and deformation under load.
• Coarse UNC threads with Class 2A fit offer faster assembly and reliable engagement in a wide range of materials.
• External hex drive and large head size allow for high torque application and secure fastening with standard tools.
• Partial threading design provides optimal grip and clamping force for specific joint requirements.
• Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees quality, safety, and environmental standards are met.

Professional Applications & Engineering Value

This heavy-duty hex head screw is engineered to solve critical fastening challenges in demanding sectors like construction, marine, chemical processing, and heavy machinery. The use of 316 stainless steel delivers exceptional resistance to corrosion from chlorides and acidic environments, significantly extending service life and reducing maintenance costs. The coarse UNC thread and Class 2A fit ensure quick, reliable installation even in softer materials or where vibration is a concern, minimizing the risk of cross-threading. The external hex drive and robust head design facilitate high-torque tightening, providing a secure, vibration-resistant connection essential for structural integrity. Its partial threading allows for precise control over the clamped zone, making it ideal for applications where a specific unthreaded shank length is required to bear shear loads effectively.

Specification Summary & Compliance

This screw features a 1 3/4"-5 UNC coarse thread with a Class 2A thread fit for standard clearance and reliable assembly. It is manufactured to meet the dimensional and mechanical requirements of the ASME B18.2.1 standard. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for use in various industrial markets.