License plate screw component description:

Logo marking specifications for 20mm circle diameter

Hexagon nut specifications for on the corner of 25mm diameter， 22mm thick 9mm， parallel edges， blackaluminum alloy electroplating electrophoretic black， paragraph 304 stainless steel.

Parts specification a short screw 12mm long [with] two long screw nut， 25mm long

Note: three screw fittings are iron material