
Making a die nut
A die nut is created with interrupted sections of thread around its internal diameter. Die nuts are simply screwed onto the threaded part. As they are wound down, they cut away any of the screw thread that is bruised (bent over) or out of line. A die nut cuts irregularities and scrapes off the dirt from the thread it is being used on so needs cutting edges, which are formed by the cut-away places.