Terex
Nylon insert lock nut for Terex BT4792
This heavy-duty nylon insert lock nut is designed for the mainframe assembly of the Terex BT4792 crane. It features a 1.25-12 thread specification and a zinc-plated finish.
Parts diagram
Compatible models
Specifications
- Part number
- NYH-A25F000-22
- Brand
- Terex
The NYH-A25F000-22 nylon insert lock nut serves as a critical fastener within the mainframe assembly of the Terex BT4792 crane. This component is engineered to maintain the structural integrity of the machine by securing key connections within the chassis and frame systems. The integrated nylon insert creates friction against the bolt threads, which helps to resist loosening when the equipment is subjected to dynamic loads or operational vibrations.
This specific nut is manufactured with a 1.25-12 thread size and features a zinc-plated steel construction. It is compatible with the Terex BT4792 model. By providing a secure locking mechanism, this fastener ensures that critical joints remain tight and stable during the operation of the crane.
Lock nuts of this type are used throughout heavy machinery to prevent fasteners from backing off due to mechanical movement. The nylon insert acts as a locking element that deforms slightly when threaded onto a bolt, creating a prevailing torque that holds the assembly in place without the need for additional locking washers or adhesive compounds.

