... , gold, blueSurfaceZinc coatedDetails of material of flat head studs/ tungsten carbide tire studs in car for Motorcycle, ATV, Farm, ... center color: black 2.cloth of 100% quality guarantee customized tungsten carbide tire studs, tyre nailsMateria : low carbon steelSurface covering ... studs : We produce different sizes and different shapes of tungsten carbide pins, studs, nails for the tyre stud, spike ...