S-92655A689 1"-8 x 1 1/2" ASTM A193 18-8 Stainless Steel Heavy Hex Head Screws for High-Pressure Applications

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh environments and outdoor applications
• Exceptional mechanical strength with 75,000 psi tensile strength and Rockwell B96 hardness for heavy-duty load bearing
• Reliable thread engagement through full UNC coarse threading and Class 2A fit, ensuring secure fastening in various materials
• Optimized installation efficiency with external hex drive and standard 1 5/8" head width for common tool compatibility
• Guaranteed quality assurance meeting ASTM A193 Grade B8 specifications for consistent performance in industrial settings
• Enhanced durability through controlled manufacturing processes, providing long service life in demanding applications
• Versatile inch system compatibility with 1"-8 UNC thread size, making it suitable for replacement and OEM applications

Professional Applications & Engineering Value

This Grade B8 stainless steel hex head screw delivers critical performance where corrosion resistance and structural integrity matter most. The 18-8 stainless steel composition provides excellent protection against rust and chemical exposure, while the 1"-8 UNC coarse threading with Class 2A fit ensures rapid installation and superior vibration resistance in construction equipment, industrial machinery, and structural frameworks. The fully threaded design maximizes thread engagement across the entire 1 1/2" length, distributing stress evenly and preventing loosening under dynamic loads. With 75,000 psi tensile strength and external hex drive configuration, this fastener solves common challenges in maintenance, repair, and OEM assembly where reliability and quick installation are paramount.

Specification Summary & Compliance

This hex head screw maintains precise Class 2A thread fit tolerances according to UNC standards, with 1"-8 coarse thread spacing and fully threaded design. Manufactured to ASTM A193 Grade B8 specifications with Rockwell B96 hardness and 75,000 psi tensile strength. The product complies with industry standards for dimensional accuracy and material properties, ensuring consistent performance in mechanical and structural applications where reliable fastening is critical.