How to measure your lock!
- Measurement A - Measure from one end of the cylinder to the middle of the central screw hole.
- Measurement B - Measure from the other end to the middle of the central screw hole.
Now check your measurements:
- Measure the overall cylinder length from end to end. The length of the cylinder should equal the sum of measurements (A) and (B) when added together.
- For example: If measurement (A) = 40mm and measurement (B) = 40mm the size required would be 40/40 cylinder (80mm in length). No further measurements are required.