Fastener Locknut 7/8- 14

Fastener Locknut 7/8- 14

This 7/8"-14 fine thread hex locknut is a heavy-duty fastener designed for use across multiple concrete mixer platforms, including McNeilus and Terex Advance. It is commonly utilized in suspension systems, such as the McNeilus Bridgemaster axle assembly, and for mounting ZF drum drive gearboxes to pedestals. The locking mechanism ensures that the nut resists backing off under the extreme vibration and heavy loads typical of ready-mix operations. Replacing worn or damaged locknuts during routine maintenance or component swaps is critical for maintaining structural integrity and safety.

Key Features

• 7/8"-14 fine thread (UNF) specification for precise engagement
• Hex locknut design provides superior vibration resistance
• Grade C steel construction for high-stress applications
• Compatible with McNeilus Bridgemaster axles and ZF gearbox mounting hardware

Fits These Mixers

McNeilus, Terex, Con-Tech. Fits various systems on McNeilus rear discharge mixers, including Bridgemaster V axle assemblies (2020-2021 models) and ZF CML12 ECO II drum drive gearbox mounts. Also compatible with Terex Advance front discharge mixer applications requiring a 7/8"-14 locking 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.