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How to remove and measure a thumb turn euro profile lock cylinder

Thumb turn removal:

  • Remove the lock retaining screw from the edge of the door (located on the edge of the door and inline with the bottom of the cylinder).
  • Whilst turning the thumb turn slightly, remove the cylinder with a gentle pulling motion.

Measuring the cylinder:

                                                    Copy of thumb turn drawing

 

  • Measure from the outside edge of the cylinder (T) to the centre of the locking cam.
  • Measure from the opposite edge of the cylinder (B) to the centre of the locking cam.
  • Measure edge to edge (O) for overall length of cylinder.

Example: If dimension T = 45 mm and dimension B = 40 mm order a T45/40 cylinder, (dimension o = 45 + 40 = 85 mm).

The "T" prefix denotes the thumbturn or inside part of the lock.

Choose your cylinder here.