Heavy duty. Follower to cylinder 72mm. Based on the dimensional requirements of DIN18251. EN 12209. Included in a successful time test to EN 1634, CE marked. Sashlock has a cylinder to latch function where both latch and deadbolt can be withdrawn by cylinder or thumb turn. The lock can be operated by lever handles to withdraw the latchbolt. The deadbolt can be thrown and withdrawn from one of both sides as required depending on the cylinder selected. Euro Profile Cylinder Sashcase. Cylinders sold seperately.