How to remove the Toolbox flag from a SolidWorks file

All SOLIDWORKS Toolbox parts have an internal file flag that sets them apart from regular SOLIDWORKS parts. 

This flag enables SolidWorks to recognize them as standard parts and places a Toolbox icon beside them in the FeatureManager Design Tree. If you have created custom fasteners by copying files out of the Toolbox folders, these will still be recognized as a Toolbox part. As these are now stand-alone parts, SolidWorks will not need to search for the references within the Toolbox. Therefore you should remove the internal flag to avoid file reference conflicts.
When copies of Toolbox files are saved externally from Toolbox, it is sometimes necessary to remove the flag which identifies the file as originating from Toolbox. This article explains how to remove the Toolbox flag as well as how to determine what the current flag status is.

Custom sizes of the default fasteners can be added directly to the Toolbox, but sometimes it is necessary to take a copy of the Toolbox file in order to adjust the geometry. This may be done as an alternative to remodelling the fastener from scratch.

One of the issues that arise when copying fasteners from Toolbox is that the resultant part file maintains an internal flag. This internal flag can force SolidWorks to revert back to the original Toolbox item instead of the saved out part file when opening an assembly.

One solution to this problem is to deflag the Toolbox item. The result of this will be that the file is no longer recognised as having originated from the Toolbox and instead becomes a standard part file.

sldsetdocprop

Set Document Property

• Browse to your SOLIDWORKS installation folder (by default C:\Program Files\SOLIDWORKS Corp\SOLIDWORKS\Toolbox\data utilities)

• Add the individual part file or folder of files to be deflagged by selecting ‘add files’ or ‘add directories’
• Set the property state to ‘No’
• Click "Update Status"