Sold individually. Tapped for #1024 standard set screws.
Dummy Spindle Threaded & Tapped (16 TPI) #3101
Dummy spindles are used to mount doorknobs on non-working doors that do not need to have turning knobs. The back plate or rosette to hold the doorknob in plate will cover the mounting plate. Most antique doorknobs are compatible with this dummy spindle.