The Serozzetta SZM003 Standard Escutcheon Black Nickel has a 51mm diameter. This is to be used with a 3 or 5 lever mortice deadlock or sashlock; some of these can be found in the related products or in the Hinges, Locks & Latches category.
Zinc Alloy Escutcheon
This escutcheon is made from zinc alloy and has a black nickel finish – it is to match the SZM (M Range) handles in the Serozzetta range.