S-92186A828 5/8"-11 x 8 1/2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments including marine and chemical applications
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance under heavy loads
• Precise thread engagement with Class 2A thread fit and UNC coarse threads ensuring secure fastening and vibration resistance
• Optimized load distribution through partial threading design, reducing stress concentration and improving joint integrity
• Easy installation and removal with standard external hex drive and 15/16" head width for common tool compatibility
• Regulatory compliance assurance meeting ASME B18.2.1 manufacturing standards and environmental regulations including RoHS 3 and REACH
• Dimensional consistency with 8 1/2" length and 5/8"-11 thread specification providing reliable interchangeability in assembly operations

Professional Applications & Engineering Value

This heavy-duty hex head screw delivers critical performance advantages in demanding industrial settings where corrosion resistance and structural integrity are paramount. The 316 stainless steel composition provides exceptional protection against chloride-induced stress corrosion cracking, making it ideal for marine equipment, chemical processing plants, and coastal infrastructure. The UNC coarse thread configuration with Class 2A thread fit ensures rapid installation while maintaining precise tolerances for vibration-prone applications. The partially threaded design concentrates the clamping force where needed most, preventing thread damage during repeated disassembly. With external hex drive compatibility, maintenance teams can achieve proper torque values using standard tools, reducing installation time and improving workplace safety in construction, heavy machinery, and industrial manufacturing applications.

Specification Summary & Compliance

Manufactured to exacting dimensional standards with Class 2A thread fit tolerances and UNC thread form specification. This 5/8"-11 hex head screw features a length of 8 1/2" with minimum thread length of 1 3/4". The product fully complies with ASME B18.2.1 mechanical and dimensional specifications, ensuring interchangeability and reliability. Environmental compliance is verified through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) certifications, confirming the absence of restricted substances for global industrial applications.