Spindle for Entry Door

This is an all purpose spindle for antique mortise locks and antique door knobs.

This knob is intended for use with an entry mortise lock that has buttons on the edge of the door. These buttons enable the user to lock the outside knob while allowing the inside knob to turn freely. Therefore it is essential to loosen the spindle in the middle so it can turn freely at least 90 degrees. Tip: put a drop of oil at the swivel point to prolong the life of the spindle.

This spindle measures 4-3/4" long.

The spindle is threaded on both ends with 3/8"-20 threads. This fits the most common antique door knob with a threaded interior.

These door knobs also fit door knobs with a square broach using Jackson Head set screws. There are 3 holes on either end threaded 9-24 / 10-24. For proper operation, when using Jackson Head set screws, spindle must be perfectly centered in the door by using Spindle Washers.

The spindle is .281" square. This is 9/32" or about 7.2 mm.

There are removable adapters in the middle for antique mortise locks that have 3/8" hubs. The actual outside measurement of these adapters is .362".