Measuring

A – Centers
This is the most important measurement (from the center of the key hole to the center of the handle)

B – Overall length of handle plate

C – Width of the handle plate

D - Number of fixing screws

E – Distance between the bottom of the lock barrel (cylinder) and the center of the bottom screw

F – Distance between the center of the top screw and the center of the bottom screw

G – Spindle size
The width of the spindle (the spindle is the square piece of metal that connects both handles and operates the lock)