Hex Bolt Gr 8 7/8"-9 X 18"

Hex Bolt Gr 8 7/8"-9 X 18"

This is a specialized, extra-long Grade 8 hex bolt designed for critical, high-stress fastening applications on heavy machinery. Manufactured from quenched and tempered medium carbon alloy steel, it provides a minimum tensile strength of 150,000 PSI, making it ideal for securing major structural components like pedestals, gearboxes, or main frame elements on equipment such as concrete mixer trucks. Its 18-inch length is intended for specific situations requiring significant reach and clamping force through thick assemblies. The coarse thread (UNC) design provides strong, reliable engagement in demanding environments.

Key Features

• Meets SAE J429 Grade 8 specifications for mechanical and material properties.
• Minimum tensile strength of 150,000 PSI for superior load-bearing capacity.
• Manufactured from quenched and tempered medium carbon alloy steel for maximum strength and durability.
• Coarse thread (9 TPI) for robust and secure fastening.
• Distinctive six radial line head marking for easy identification as a Grade 8 fastener.
• Extra-long 18-inch length for specialized structural applications.

Fits These Mixers

McNeilus, Terex, Con-Tech. This is a general-purpose high-strength fastener for heavy equipment. While suitable for concrete mixers from brands like McNeilus, Terex, and Con-Tech, no specific model or system fitment was found for this 18-inch length. It is likely used for securing major structural components like pedestal mounts or gearbox assemblies. Users must verify the required dimensions for their specific application before purchasing.

All measurements ± standard manufacturing tolerance.

Product descriptions are drafted with automated tools and reviewed as time allows. While we work to keep them accurate, specifications and fitment should be confirmed with a Customer Service specialist at 800-745-3414 before purchase. Found an error? Let us know and we’ll fix it.