Oshkosh Kosh Faa Fastener Hexnut

Oshkosh Kosh Faa Fastener Hexnut

The Oshkosh 7/8"-14 Grade 8 Hex High Nut (also known as a deep nut or frame locknut) is a heavy-duty fastener designed for axle and suspension systems on front discharge mixers. It is specifically used to secure the U-bolts on the front steer axle leaf spring assembly, requiring four nuts per spring to maintain proper clamping force. Manufactured to Grade 8 specifications, this high nut provides exceptional torque capacity and extended thread engagement to withstand the extreme loads and vibrations of concrete mixer operation. Replacing worn or stripped suspension nuts during routine maintenance or spring replacement is essential to maintain axle alignment and ensure safe vehicle handling.

Key Features

• Grade 8 steel construction for high tensile strength and durability in heavy-duty suspension applications
• Deep nut / high hex design (1.156" height) provides extended thread engagement for secure fastening
• 7/8"-14 fine thread pitch ensures precise torque application and resistance to loosening under vibration
• Direct replacement for Oshkosh front steer axle leaf spring U-bolt lock nuts

Fits These Mixers

Terex, Terex Advance, Oshkosh. Fits Oshkosh front discharge mixers, specifically used on the front steer axle leaf spring assembly (securing U-bolt 1878270 on spring kit 3254455). Also compatible with various heavy-duty truck suspensions including Freightliner, Mack, Navistar, and Sterling applications requiring a 7/8"-14 Grade 8 high nut.

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.