Seller: ncc170167 (521) 100%, Location: Bronx, New York, Ships to: US, Item: 201722145775 For sale:(01 pair of Glass knobs and spindleProduct Description These vintage style door knobs are constructed of clear fluted glass and come fastened to a bright brass plated diecast base. This set of knobs is designed for indoor use only, and it includes a 17/64 in. x 3-1/2 in. steel spindle with 3/8 in. -20 threads. This classic style knob set fits square drive spindle systems commonly found in antique and vintage door hardware sets, and it can adjust to accommodate different door thicknesses. The diecast base on these knobs include the set screws for fastening the knobs to the square spindle as well as the spindle itself.