5/16” Rubber Panel Plug, Knockout Plug, Fits 1/16” Thick Materials 25 per Pack Knockout Plugs. Rubber Knockout Plugs. Plastic Box Knockout Plugs. 5/16" Rubber Panel Plugs. Panel Plugs. Blind Panel Plug. Fits Panel Thickness: 1/16 (.060). Electrical Panel Hole Covers. byJuly 3, 2026
