SPM Module Lead Screw Type Tapping Heads

A tapping head is a drill or milling machine attachment used to cut threads of a nut. Instead of being a solid surface on the inside like the type of nuts used with Phillips or flat head screws, there are threads drilled through the inside.Bottom tapping or plug taps are used to form tapping heads that have threads with little to no taper. This allows the screw to be successfully installed and is usually used for threading into a blind hole. A blind hole is one that has been drilled to a certain depth but not all the way through the wood or other material.