S-93190A728 1/2"-13 x 4" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh chemical environments thanks to 316 stainless steel construction
• Exceptional tensile strength of 70,000 PSI ensures reliable performance under heavy loads and vibration
• Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
• Fully threaded design maximizes grip and holding power across the entire 4" length
• Class 2A thread fit offers optimal assembly ease while maintaining secure fastening
• External hex drive and 3/4" head width allow for high-torque installation with standard tools
• Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees quality and environmental safety

Professional Applications & Engineering Value

This 1/2"-13 UNC hex head screw is engineered to solve critical challenges in demanding industrial settings. The 316 stainless steel material provides outstanding resistance to chemicals, chlorides, and extreme temperatures, making it ideal for marine, chemical processing, and food industry applications where corrosion failure is not an option. The coarse thread and Class 2A thread fit ensure quick, reliable assembly even in high-vibration environments, reducing installation time and maintenance costs. With its fully threaded design and external hex drive, it delivers consistent clamping force and is easy to install with common wrenching tools, providing long-term reliability in structural and heavy-duty mechanical assemblies.

Specification Summary & Compliance

This hex head screw features a 1/2"-13 UNC coarse thread with Class 2A dimensional accuracy, ensuring proper fit and interchangeability. It is manufactured in accordance with ASME B18.2.1 standards and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial use without hazardous substances.