Provided is a rubber foot for a heatable or heated metal device, such as a cast iron grid of a cooking hob. The rubber foot includes a shaft forming an upper part of said rubber foot and having a symmetry axis. The shaft has a cylindrical body for inserting into a hole in the bottom of the metal device along the symmetry axis. The rubber foot includes a head forming a lower part of said rubber foot and being provided for a position below the hole in the bottom of the metal device. The rubber foot includes at least one wing enclosing at least partially the cylindrical body and formed by at least one ring enclosing the cylindrical body which can be subdivided by at least one recess. The rubber foot with the shaft, head and at least one wing is formed as a single-piece part.