About product and suppliers: metal wall plug are very useful elements for a countless number of purposes, both commercial and residential. 99. Make sure you use a type of screw that is suitable for use with wall plugs, and that has the right length and thickness for the wall plug you’re using. The yellow plugs shown in this example take 4mm gauge screws, the red ones take 5mm and the brown ones take 5.5mm - although wall plugs do come in lots of colours. How to use: Drill through the plasterboard wall to create a hole for the anchor nut.Bash the rubber anchor nut in place with a hammer. A: Anytime you buy a drill bit it should come with the correct sizes. Choose a screw or hook suitable for the particular application. Never drill into a wall without checking first for hidden pipes and cables using a multi detector. When in doubt, ask a clerk or handyman to tell you if the wall anchor and screw will be sufficient for your job. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/b7\/Add-Insulation-to-an-Old-House-Step-3-Version-2.jpg\/v4-460px-Add-Insulation-to-an-Old-House-Step-3-Version-2.jpg","bigUrl":"\/images\/thumb\/b\/b7\/Add-Insulation-to-an-Old-House-Step-3-Version-2.jpg\/aid5215759-v4-728px-Add-Insulation-to-an-Old-House-Step-3-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"