S-92800A412 1/2"-20 x 4 1/2" 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 environments and extended service life
• Exceptional mechanical strength with 80,000 PSI tensile strength and Rockwell B70 hardness for reliable performance under high stress
• Precise and secure fastening thanks to the UNF fine thread and Class 2A fit, minimizing the risk of loosening in vibration-prone applications
• Efficient installation and removal with the external hex drive and 3/4" head width, allowing for high torque application with standard tools
• Full-length threading provides consistent grip and load distribution along the entire 4 1/2" length for maximum holding power
• Compliance with strict environmental regulations, being RoHS 3 and REACH compliant, ensuring safety and regulatory acceptance in industrial markets
• Right-hand thread direction offers standard, intuitive installation for widespread compatibility and ease of use

Professional Applications & Engineering Value

This 18-8 Stainless Steel Hex Head Screw is engineered to address critical challenges in demanding industrial fastening applications. The combination of high tensile strength (80,000 PSI) and corrosion-resistant material makes it a robust solution for machinery, structural assemblies, and equipment exposed to stressful and corrosive environments. The UNF fine thread (1/2"-20) with a Class 2A fit ensures precise engagement and vibration resistance, reducing maintenance needs and preventing joint failure. Its external hex drive and substantial head width (3/4") facilitate efficient installation, even in high-torque scenarios, enhancing productivity and reliability in sectors like manufacturing, construction, and heavy equipment.

Specification Summary & Compliance

This screw adheres to inch system specifications with a 1/2"-20 UNF fine thread and Class 2A thread fit for consistent dimensional accuracy. It is fully threaded and features a right-hand thread direction. The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets current environmental and safety standards for industrial components.