S-92198A138 1"-14 x 5" 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 reducing maintenance costs.
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B70 hardness for reliable performance under high-stress loads.
• Secure and precise fastening thanks to the 1"-14 fine thread (UNS) and Class 2A thread fit, minimizing the risk of loosening in vibrating applications.
• Optimized for high-torque installation with an external hex drive and large 1 1/2" head width, allowing for easy application with standard tools.
• Versatile partial threading design on a 5" length provides strong clamping force where needed while allowing for unthreaded shank flexibility.
• Full compliance with industry standards including ASME B18.2.1, ensuring dimensional accuracy and interchangeability for professional use.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements for hazardous substances.

Professional Applications & Engineering Value

This 18-8 stainless steel hex head screw is engineered to address critical challenges in demanding industrial applications where corrosion resistance and structural integrity are paramount. The 1"-14 fine thread (UNS) pattern offers a higher number of threads per inch compared to coarse threads, resulting in superior resistance to vibration loosening and enhanced fatigue strength—making it ideal for machinery, heavy equipment, and structural assemblies. The partially threaded design on a 5" length allows the unthreaded shank to bear shear loads effectively, while the threaded portion ensures tight clamping. Combined with an external hex drive for high torque application, this screw provides a reliable, long-lasting fastening solution that withstands harsh operational conditions, reducing downtime and maintenance needs.

Specification Summary & Compliance

This screw features a 1"-14 fine thread with Class 2A thread fit for precise, interchangeable assembly. It is manufactured in accordance with ASME B18.2.1 specifications, ensuring consistent dimensional accuracy. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for hazardous substances.