S-92198A758 1/2"-13 x 8 1/2" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 18-8 stainless steel, ideal for harsh industrial environments and outdoor applications.
• High tensile strength of 80,000 PSI ensures reliable performance under significant load and stress, reducing the risk of fastener failure.
• Rockwell B70 hardness provides excellent durability and resistance to wear, extending the service life of the screw.
• Coarse UNC thread and Class 2A fit allow for faster assembly and easier alignment, saving valuable installation time.
• Partially threaded design offers superior clamping force on joined materials, preventing loosening from vibration.
• 3/4" hex head with external drive enables high-torque installation with standard tools, ensuring a secure and tight fit.
• Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees product quality, safety, and environmental responsibility for global supply chains.

Professional Applications & Engineering Value

This 1/2"-13 UNC Hex Head Screw is engineered to solve critical challenges in heavy-duty industrial applications, such as structural steel framing, machinery assembly, and construction projects. The 18-8 Stainless Steel material provides inherent resistance to rust and oxidation, which is vital for outdoor or high-moisture environments, reducing maintenance costs and downtime. The coarse thread and Class 2A thread fit ensure quick and reliable fastening, even in situations where alignment is imperfect, enhancing assembly efficiency. With a partially threaded shank, it delivers optimal clamping force, preventing joint failure under dynamic loads and vibration. This screw is a dependable choice for engineers and procurement specialists seeking a high-strength, compliant fastener that meets rigorous ASME B18.2.1 standards and environmental regulations like RoHS and REACH.

Specification Summary & Compliance

This hex head screw features a 1/2"-13 UNC coarse thread with a Class 2A thread fit, ensuring precise dimensional accuracy and interchangeability. It is manufactured in compliance with the ASME B18.2.1 standard, which governs dimensional and mechanical requirements for hex bolts and screws. The product is also confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety regulations for hazardous substances.