Yale 10 1003 4040 CK40201 1000 Series Lock Cylinder, Polished Brass, 40/40K mm

HIGH SECURITY CYLINDER: This patented 6 pin cylinder with brass body provides a high level of security for your front door with protection against picking. Rotary knob cylinder: close and open your door inside with a rotary knob. One twist is enough to lock or unlock the door. Privacy guaranteed: when the door is locked inside, opening from the outside is only possible in an emergency with a screwdriver or coin. MEASURE YOUR CYLINDER: To buy the correct size, measure each side of the cylinder from the front to the centre of the cam (A = outside, B = inside)., Manufacturer: Yale