I think 5mm X 20mm.
The size of the screw needed to mount a license plate on a 1998 Cadillac STS is 1/4-inch?æby 1/2-inch. They make license plate kits that includes all needed hardware.
the 2 plates which form mount helka r the north American and eurasian plates
The state of Maryland further defines that all license plates must be mounted in a horizontal position, as stated by Maryland Vehicle Law subsection 13--411, Article 2.
The Philippine and Eurasian plates created Mount Unzen in Japan.
the European plates and the Africa plate
1/4" x 20 threads. 1" long.
As of January 2011, the answer is No in California. The new law states ---""License plates shall at all times be securely fastened to the vehicle for which they are issued so as to prevent the plates from swinging, shall be mounted in a position so as to be clearly visible, and so that the characters are upright and display from left to right, ----- VC Section 5201.
The plates that are currently causing Mount rainier to form is the North American plate and the Jaun de Fuca plate.