National Crane
Hex cap screw for National Crane 900
This hex cap screw is a mechanical fastener designed for use on National Crane 900 cranes. It provides a secure connection for various structural and mechanical assemblies within the machine.
Compatible models
Specifications
- Part number
- 857688
- Brand
- National Crane
The hex cap screw is a mechanical fastener used to secure components within heavy machinery. Its design allows for efficient tightening and removal using standard tools, ensuring that parts remain firmly joined during operation. This component is engineered to withstand the mechanical stresses, including tension and shear forces, that are common in crane applications.
This specific part, identified by part number 857688, is compatible with the National Crane 900 crane. It is intended for use in various assemblies, ranging from structural connections to the mounting of engine, transmission, or hydraulic system components. Proper installation of this fastener is necessary to maintain the structural integrity and alignment of the equipment.
Hex cap screws function by providing a threaded connection that holds multiple parts together under load. They are selected based on specific thread pitch, diameter, and strength requirements to ensure they meet the load-bearing demands of the application. Regular inspection of these fasteners is standard practice in crane maintenance to ensure that all connections remain secure and that the equipment continues to operate within its design parameters.

