Terex
Hex nylock nut for Terex PT30
This hex nylock nut 8040-726 is a fastening component used in the engine assembly of Terex PT30 machinery. It features a 5/8-11 UNC thread specification and a zinc finish.
Parts diagram
Compatible models
Specifications
- Part number
- 8040-726
- Brand
- Terex
The hex nylock nut serves as a critical fastening element within the engine assembly of the Terex PT30. It utilizes an integrated nylon insert that provides friction against the bolt threads to maintain tension in the connection. This design helps secure components in place, particularly in areas subject to operational movement.
This component is specified for the Terex PT30, specifically for units with serial numbers DTA 05001 and later. It is manufactured to a 5/8-11 UNC thread size, indicating a 5/8-inch diameter with 11 threads per inch, and includes a zinc finish for corrosion resistance.
Hex nylock nuts are used throughout heavy machinery to ensure that bolted joints remain secure. The nylon insert prevents the nut from backing off the bolt due to vibration, which is a common requirement for maintaining the integrity of mechanical assemblies and engine mountings.

