Which element is NOT part of the identification information on a Dzus fastener?

The identification information on a Dzus fastener is crucial for understanding its specifications and suitable applications. When considering the elements that typically constitute this identification information, the length of the fastener provides essential sizing details, the type of head indicates the style and functionality, and the body diameter informs about fitting into corresponding holes or panels where the fastener will be used.

In contrast, while the material type may be relevant for certain engineering considerations, it is not generally classified as part of the identification details on a Dzus fastener. The primary focus for identification is on sizes and styles that directly affect installation and operation. By excluding material from the key identification components, we emphasize that users of Dzus fasteners are primarily concerned with fit, function, and style rather than the raw material from which the fastener is made. This distinction helps in quickly identifying the appropriate fastener for various applications without needing to delve into material specifications.