This is a brand new pair of crystal glass door knobs with 5/16" threaded spindle. This door knob has a brass finish base and a crystal faceted designed glass handle. It fits all doors using the standard 5/16" square threaded spindle. The spindle is 3 1/2" long. The knob diameter is 2" and projects 2 1/4". Sometimes the threaded spindle rod is plain steel and sometimes it is plated steel but neither affects the operation of the handles. These replacement handles are for old style mortise locksets, they will NOT FIT a modern door that has a predrilled 2 1/8" hole.
Have a look at these escutcheon plates that you may need to go with these handles. Just click the highlighted links. 4040
