Solid Brass Thumb Turn in Antique-By-Hand Finish

Solid brass crescent thumb turn with oval back plate for use with privacy mortise locks in Antique-By-Hand Finish.

Dimensions:
Rosette: 1 3/16" x 1 3/4" x 1/8" Thick
Spindle: 1 3/8" L x 3/16" square, 20 TPI

Also called a turnkey, is usually an oval or crescent shaped knob which is turned to operate the dead bolt of a privacy or entry mortise lock and may be connected to a door plate or a separate part.