Insulation wall plug

I designed this model to mount lightweight things (lights, wall plugs, thermostat sensor,…) to the outdoor walls of my house.The brick walls are covered with insulation plates and plaster, which makes it very difficult to securely screw someting into it. This will help, but keep in mind that these will not carry more than 5-10kg.You've got these from Fischer (FID plugs) but 6 euros for 2 pieces gets expensive fast.For the best print results, print them in impact resistant PLA with the follow