For your order of the above hinges we must have more information so that we may furnish you with the proper size hinges for your requirements. This lip thickness will correspond to the offset on the H17 or H18 hinges.
Lip thickness is the same as offset only when frame and door thickness are the same.
With this information we can produce hinges for you that will have the screws into the edge of the door and the edge of the frame centered. The distance between the screw hole centers is equal to the thickness of the lip. This is the most common size of originals found. If you are working on an old clock that has had the hinges changed before, and therefore is cut out further, we can supply longer ones to special order as required. We will be glad to quote on these if needed.