Door Knob Spindle and Dummy Spindle Hardware

Replace an old or worn door knob spindle with one of our door or dummy spindles. Tip: if you need a threaded spindle find out what the threads per inch are, and check to see that the spindle thickness is small enough to fit through the hub of your lock or latch.

55 Products

4-Inch Steel Threaded Spindle 8 mm - 20 TPI

This sturdy 4-inch spindle is designed to facilitate new or vintage doorknobs with threaded shanks of 20 TPI. Constructed of hardened steel, it provides smooth operation and long-lasting wear. Ideal for standard doors.

$4.79
Zinc plated Steel Nut for Spindles 3/8-Inch 20-TPI

Hexagonal screw for optional use with doorknob spindles. Intended for use with split spindles in doors that have a knob from only one side. By tightening the nut against the door lock’s hub, it helps set the spindle in the lock. Made of steel and zinc plated.

$1.59
2 1/2-Inch Steel Sectional Spindle 7 mm - 16 TPI - Tapped 10-24

Split spindles for doorknobs. Steel. Zinc plated. Have 3 threaded holes tapped 10-24, and can be used with threaded doorknobs or with old doorknobs with square holes. Used with locks when a doorknob is needed on one side only. These have the coarser 16 TPI.

$7.99
3 1/2-Inch Steel Threaded Swivel Spindle 8 mm - 20 TPI

Our 3 1/2-Inch x 8mm threaded doorknob swivel spindle facilitates new or vintage doorknobs with threaded shanks of 20 TPI. Used with privacy latches and mortise locks, its zinc-plated steel construction provides smooth operation and long-lasting wear.

$6.79
3 3/4" Threaded Doorknob Swivel Spindle 7mm - 20 TPI

Our 3 3/4-Inch Threaded Doorknob Swivel Spindle facilitates new or vintage doorknobs with threaded shanks of 20 TPI. Used with privacy latches and mortise locks, its zinc-plated steel construction provides smooth operation and long-lasting wear. It features a standard 7mm thickness.

$6.49
Steel Half Spindle 8 mm 20-TPI

8mm Half spindle for doorknobs. Steel. Zinc plated. For mortise locks or rim locks where only one doorknob is used. Secured with a screw at one end.

$3.79
Steel Half Spindle 7mm 20-TPI

7mm Half spindle for doorknobs. Steel. Zinc plated. For mortise locks or rim locks where only one doorknob is used. Secured with a screw at one end.

$3.79