http://us.essentracomponents.com/en-US/caps-plugs/push-fit-plugs/panel-plugs/solid-locking-plugs/solid-locking-plugs-us-p050710
Solid Locking Plugs Solid Locking Plugs fit multiple common sheet metal thicknesses with a locking feature that snaps and holds the plug in place once applied. Ideal for closing access holes on sheet metal panels, automobile bodies, tanks, or anywhere a finished look is required. In Stock! Free sample available
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