How many threads protrude from a nut?

A nut typically has internal threads that correspond to the external threads of a bolt or screw it is meant to fit onto. The number of threads that protrude from a nut depends on how far the bolt or screw is inserted into it. Generally, if a bolt is fully threaded and fully engaged in the nut, no threads will protrude. However, if the bolt is only partially threaded into the nut, the number of visible threads will vary accordingly.