 There are no registered trademarks filed in the United States for "Nyloc" or "Nylock" that are currently active in regards to fasteners.In Australia, "Nyloc" is a registered trade mark of Exafast Pty Ltd.

A nylon pellet nut is very similar to a nyloc nut except that it uses one or more smaller nylon inserts instead of a ring of nylon.They do not lock as strongly as nyloc nuts.