Set of 8 replacement screws (N3JS) for attaching the jaws to the Nexus3R Lathe Chuck. Thread Size: M6 Overall Length: 12mm Thread Length: 8mm Head Type: Countersunk Special Tool Required: 4mm Hex key When fitting any of our N Type jaws to other compatible brands of chuck it will be necessary to replace the original jaw screws for these jaw screws at the same time.