S-92800A441 1"-8 x 4 1/2" 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and reducing maintenance costs.
• High tensile strength of 80,000 PSI ensures reliable performance under heavy loads and prevents fastener failure.
• Rockwell B70 hardness provides superior durability and resistance to wear, extending the screw's service life.
• Coarse UNC thread and Class 2A fit offer easier, faster assembly and reliable engagement in a wide range of materials.
• Fully threaded design maximizes grip length and load distribution along the entire fastener.
• External hex drive and hex head allow for high-torque installation with standard tools, speeding up assembly processes.
• Compliance with RoHS 3 and REACH ensures environmental safety and meets international regulatory standards for industrial use.

Professional Applications & Engineering Value

This 1"-8 UNC coarse thread hex head screw is engineered to solve critical challenges in demanding industrial applications. The 18-8 Stainless Steel material provides excellent corrosion resistance, making it suitable for outdoor, marine, or chemical-exposed environments where rust can compromise structural integrity. The coarse thread design ensures quick installation and reduces the risk of cross-threading, while the Class 2A thread fit offers consistent, reliable fastening without sacrificing precision. With an 80,000 PSI tensile strength and Rockwell B70 hardness, it withstands high stress and vibration, preventing loosening and failure in heavy machinery, construction, and transportation equipment. The fully threaded body and external hex drive further enhance its utility in applications requiring robust, secure connections that are easy to install and maintain.

Specification Summary & Compliance

This screw features a 1"-8 UNC coarse thread with Class 2A fit for standard tolerance and reliable engagement. It is manufactured in the inch system with dimensions including a 4 1/2" length, 1 1/2" head width, and 39/64" head height. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for industrial use.