You can damage or strip a grounding strap if you remove a door or panel without first detaching the strap from the door or panel. Remove the damaged grounding strap from the rack prior to installing a replacement strap.
See Detach a Grounding Strap for the locations of these grounding straps and how to detach a grounding strap.
Save the screw and washer, and ensure that the spring nut remains at the same location in the rack.
Place the washer between the grounding strap and the rack.
The connector will click in place when correctly inserted. See Attach a Grounding Strap for instructions on attaching a grounding strap.