S-93190A917 1"-8 x 4" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance under heavy loads
• Easy and secure installation with a standard 1 1/2" external hex head design, compatible with common tools
• Optimized thread engagement from the 1"-8 UNC coarse thread and Class 2A fit, ensuring quick assembly and vibration resistance
• Full-length threading provides maximum grip and adjustability across the entire 4" length for versatile fastening applications
• Compliance with industry standards including ASME B18.2.1, RoHS 3, and REACH, guaranteeing quality and environmental safety
• Durable and long-lasting performance due to the robust material and precise manufacturing, reducing maintenance and replacement costs

Professional Applications & Engineering Value

This 316 stainless steel hex head screw is engineered to address critical challenges in demanding industrial settings. The 1"-8 UNC coarse thread and Class 2A thread fit deliver reliable fastening in high-vibration environments, such as machinery assembly, structural frameworks, and marine equipment. The external hex drive allows for high-torque installation, ensuring tight connections without stripping. Made from 316 stainless steel, it offers excellent resistance to corrosion from moisture, chemicals, and saltwater, making it ideal for outdoor, chemical processing, and offshore applications. Its fully threaded 4" length provides consistent holding power, while compliance with ASME B18.2.1 ensures dimensional accuracy and interoperability. This screw reduces downtime and enhances safety in heavy-duty fastening tasks, supporting industries like construction, manufacturing, and transportation with a dependable, long-term solution.

Specification Summary & Compliance

This product features precise Class 2A thread fit with 1"-8 UNC coarse spacing and a right-hand thread direction, manufactured to ASME B18.2.1 standards for consistent quality. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various industrial uses. The screw is fully threaded and measures 4" in length with a head width of 1 1/2" and height of 39/64", providing reliable performance in inch-system applications.