S-92655A641 5/8"-11 x 7" ASTM A193 18-8 Stainless Steel Heavy Hex Head Screws for High-Pressure Applications

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength delivering 75,000 psi tensile strength for heavy-duty applications
• Reliable thread engagement with Class 2A UNC coarse threads ensuring secure fastening
• Optimized load distribution through partial threading with 1¾" thread length and 5¼" grip length
• Easy installation and removal with external hex drive and standard 1-1/16" head width
• Industry compliance assurance meeting ASTM A193 Grade B8 specifications for quality and performance
• Enhanced durability with Rockwell B100 hardness for long-term service life

Professional Applications & Engineering Value

This 5/8"-11 UNC hex head screw delivers critical engineering advantages in demanding industrial settings. The 18-8 stainless steel composition provides excellent corrosion resistance, making it suitable for chemical processing, marine applications, and food processing equipment where moisture resistance is paramount. The partially threaded design with substantial 5¼" grip length ensures optimal clamp load distribution while preventing thread damage in assembled components. With 75,000 psi tensile strength and ASTM A193 Grade B8 certification, this external hex drive fastener meets rigorous pressure vessel, valve, and high-temperature application requirements. The coarse UNC threads facilitate quick assembly in structural steel, heavy machinery, and construction projects where vibration resistance and reliability are essential.

Specification Summary & Compliance

This hex head screw features precision Class 2A thread fit with 5/8"-11 UNC coarse threading and right-hand thread direction. Manufacturing complies with ASTM A193 Grade B8 specifications, ensuring consistent mechanical properties and dimensional accuracy. The fastener maintains 7" total length with 1¾" thread length and 25/64" head height. Materials and processes conform to industry standards for heavy-duty industrial applications, providing reliable performance in critical fastening scenarios.