The self-tapping screw has been around for many years but it is surprising how the market place for this type of fixing is continually finding new applications. The screw is basically one of those screws which can form its own thread when screwed into a drilled hole and then tightens up using the thread that it has just formed. It can be used on metal and plastic and several other mediums and is a great way to form a simple joint when it is only possible to tighten the joint from one side.
The screws can be made from mild … Read the rest of this post
