Pair of Black Porcelain Rim Lock Knobs With Black Iron Shanks

Glossy jet porcelain knobs with an iron shank are the perfect companion to our enameled Victorian rim locks. The black on black pairing is a stately look that's always in style. Each pair has one long shank (for the rosette) and one short shank with a flange (to sit flush on the lock surface).

Dimensions. Knobs: 2 3/8" diameter. Long shank: 5/8" diameter, drilled for a 20 TPI spindle. Spindle: 4 1/2" L x 9/32". Includes an Allen wrench and set screws for mounting knobs to spindle.

How do I know what door knobs will work with a particular rosette or door plate? The knob shank diameter should be a little less than the inside collar diameter on the rosette.