S-92655A664 7/8"-9 x 1 1/4" ASTM A193 18-8 Stainless Steel Heavy Hex Head Screws for High-Pressure Applications

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Superior mechanical strength delivering 75,000 PSI tensile strength and Rockwell B96 hardness for heavy-duty applications
• Precision thread engagement with Class 2A UNC coarse threads ensuring reliable fastening and vibration resistance
• Optimized installation efficiency through external hex drive design providing maximum torque transmission
• Full thread coverage along the 1 1/4" length for maximum grip and load distribution
• Industry-standard compliance meeting ASTM A193 Grade B8 specifications for quality assurance
• Right-hand threading design for standard installation procedures and compatibility with existing systems

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 7/8"-9 UNC hex head screws provide critical solutions where corrosion resistance and structural integrity are paramount. The 18-8 stainless steel composition offers excellent protection against chemical exposure and atmospheric corrosion, while the ASTM A193 Grade B8 certification ensures material consistency under high-temperature conditions. The coarse UNC threading with Class 2A fit prevents cross-threading during installation and maintains secure fastening under dynamic loads. These fully threaded fasteners are particularly valuable in pressure vessel assemblies, structural frameworks, and heavy machinery where 75,000 PSI tensile strength is essential for maintaining joint integrity under extreme operational stresses.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit with 7/8"-9 UNC coarse threading and right-hand direction. Manufactured to ASTM A193 Grade B8 specifications with Rockwell B96 hardness and 75,000 PSI tensile strength. The inch-system fastener maintains dimensional accuracy with 1 1/4" length and 1 7/16" head width for standardized tool compatibility. Complies with industry standards for heavy-duty industrial applications requiring reliable mechanical performance and corrosion resistance.