Factory Team Blue Aluminium 4mm Flanged Nyloc Nuts 10Pcs

Replacement flanged nyloc nuts for RC vehicles. Nyloc nuts are lock nuts with a nylon collar that increases friction on the screw shaft. The collar has a slightly smaller inner diameter than the thread size; the insert deforms to the threads of the screw, locking the nut against the screw through friction and increasing strength and reliability.