Terex
Nylon lock nut for Terex BT4792
This nylon lock nut features a 5/8-11 thread and a Grade 8 zinc finish. It is designed for secure fastening in the Terex BT4792 crane.
Parts diagram
Compatible models
Specifications
- Part number
- 221-00033-7
- Brand
- Terex
The nylon lock nut 221-00033-7 serves as a mechanical fastener for the Terex BT4792 crane. It features a 5/8-11 thread size and is constructed to Grade 8 specifications with a zinc coating. The integrated nylon insert provides resistance to loosening in applications subject to operational vibration. This component is used to secure structural and mechanical assemblies where maintaining torque and joint integrity is required for the machine.
This fastener is compatible with the Terex BT4792 model. The Grade 8 rating indicates the steel strength, and the zinc finish provides protection for the fastener in various operating environments. It is intended for use in assemblies where a locking mechanism is necessary to prevent the nut from backing off under load or vibration.
Lock nuts of this type are commonly used throughout heavy machinery to maintain the tension of bolted joints. By creating friction against the mating bolt threads, the nylon insert prevents the fastener from rotating loose, which is necessary for the stability of components that experience frequent movement or mechanical stress during crane operation.

