S-92198A822 5/8"-11 x 8" ASME B18.2.1 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 industrial environments
• Exceptional mechanical strength offering 80,000 psi tensile strength and Rockwell B70 hardness for heavy-duty applications
• Reliable fastening performance ensured by Class 2A thread fit and UNC coarse threading for secure connections
• Easy installation and removal with external hex drive and standard 15/16" head width for common tool compatibility
• Optimized load distribution through partially threaded design, reducing stress concentration points
• Long-term durability with inch system precision manufacturing meeting ASME B18.2.1 specifications
• Environmental compliance with RoHS 3 and REACH regulations for safe, sustainable industrial use

Professional Applications & Engineering Value

This 5/8"-11 UNC hex head screw delivers critical engineering solutions where corrosion resistance and high tensile strength are paramount. The 18-8 Stainless Steel material prevents rust and degradation in demanding environments like chemical processing, marine applications, and outdoor construction. The coarse UNC threading provides superior grip in softer materials and faster installation, while the partially threaded design concentrates clamping force where needed most. With external hex drive compatibility, maintenance teams can quickly service equipment using standard tools. These industrial hex screws are engineered to withstand vibration, heavy loads, and environmental exposure, making them ideal for structural connections, machinery assembly, and infrastructure projects requiring ASME B18.2.1 compliance.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with Class 2A thread fit tolerance for consistent performance. Thread specifications include 5/8"-11 UNC coarse thread with right-hand direction and 1 3/4" minimum thread length. Full compliance with ASME B18.2.1 manufacturing standards ensures dimensional accuracy and mechanical reliability. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for hazardous substance restriction and chemical safety.