This is an old fashioned closet spindle for use with old fashioned door knobs.
Used when a door knob is not desired on the inside of a closet door.
A small hole 9/16" is drilled through the door to allow the square spindle to engage a mortise lock or tubular latch with a 9/32" or 7mm square hole in it.
Turnpiece is 1-1/2" tall.
Rosette is 1-1/2" diameter and fastens to the door with 2 screws.
Spindle is 2-1/2" long.
Spindle is 9/32" square and is threaded 3/8-20.
Spindle has a taper slot for slide on knobs.
Provided with two 1" long screws.