This is a top quality Wilka 138R Mortise Dead Lock for doors with narrow profiles or door stiles. It has been tested to the stringent EN 12 209 standard. It has a stainless steel face plate and a fully zinc plated body. For use with a euro cylinder 1 turn of the key = 21mm dead bolt throw.
Face plate = 245mm high x 24mm wide
Case size = 183.5mm x add 15mm to required backset size to obtain the depth.