AYR Int LOCK BT Manual Del Usuario página 41

EN
7- The screws used for the lock are No. 10 (6 x 40 mm) and for
the body of the strike plate we use No. 9 (6 x 50 mm) for wooden
doors. For metal and armoured doors use No. 8 (6.3 x 32 mm) in
both cases.
7
nº5 (6x40mm)
41