For sheet metal

Plug

IC-IKPP1

Plug with barbs that ensure it stays in place properly. The plug is suitable for holes in sheet metal and has a low edge that provides an almost edge-free surface. Available in several sizes. It is not possible to pull the plug out of the hole without damaging it, but if you access the back, you can dismantle the plug from there.

Plug

IC-IKPP2

Plug with spring-loaded sides that hold the plug in place but allow for removal without damaging the plug. The plug is suitable for holes in sheet metal and is available in several sizes.