Here you will find two types of plugs for holes in sheet metal: one with barbs that lock the plug securely in place and create an almost flush surface, and one with flexible sides that hold firmly but can be removed without damage. Both types are available in a range of sizes to suit different requirements for permanent or removable fixing.
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 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.