a method and an injection mold for carrying out the method . the method according to this invention allows for a collar made of plastic to be injected molded onto an insert part having a circumferential edge . according to this invention , the insert part is inserted into a receptacle cavity of an injection mold . in a first step , plastic webs directed radially outward are formed and then mobility or means of the injection mold are lowered , the bottom part of the collar is completely formed and finally , in a third injection step , a top plastic layer of the collar is formed at the top on the edge .