S-92198A757 1/2"-13 x 8" 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 mechanical strength delivering 80,000 psi tensile strength and Rockwell B70 hardness for reliable performance under heavy loads.
• Optimized for quick assembly thanks to the coarse UNC thread and external hex drive, reducing installation time and effort.
• Enhanced joint stability with a partially threaded design that provides unthreaded shank strength where needed.
• Guaranteed dimensional accuracy with Class 2A thread fit, ensuring consistent and secure fastening in UNC threaded holes.
• Full compliance with industry standards including ASME B18.2.1, ensuring interchangeability and reliability in mechanical assemblies.
• Safe for regulated industries with RoHS 3 and REACH compliance, meeting strict environmental and health safety requirements.

Professional Applications & Engineering Value

This 8-inch hex head screw is engineered to solve critical challenges in heavy machinery, structural frameworks, and industrial equipment assembly. The 18-8 stainless steel provides excellent resistance to rust and oxidation, making it suitable for applications exposed to moisture, chemicals, or varying temperatures. Its 1/2"-13 UNC coarse threading and partially threaded body design prevent loosening under vibration and distribute stress efficiently, reducing the risk of shear failure. With an external hex drive and right-hand thread, it allows for high-torque installation using standard tools, speeding up maintenance and production cycles in sectors like construction, marine, and manufacturing. The combination of high tensile strength and precise Class 2A thread fit ensures durable, long-lasting connections in demanding environments.

Specification Summary & Compliance

This screw adheres to inch system dimensions with a thread size of 1/2"-13 UNC and a Class 2A thread fit for consistent accuracy. It is manufactured in compliance with ASME B18.2.1 specifications, ensuring mechanical and dimensional reliability. The product is also verified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming it meets current environmental and safety regulations for hazardous substances.