We now offer solid stainless-steel versions of our insert knobs. These knobs can be customized to complement any piece by adding an insert made of wood, tagua, Corian® or any other material you can shape. Just cut a plug of the material to be used, glue it into the knob and then shape the knob using either a bolt or our special mandrel to hold it in a hand drill, drill press or lathe. A quick coat of finish (poly tung oil works well) and you have a custom knob that is also tarnish-proofed.
The optional mandrel (1/4" shank, 6-32 thread) is used for doming the knobs and pressing the insert nuts into place. The knobs are available smooth rimmed or with knurling detail. The smaller knobs with outside diameters of 3/8", 1/2" and 5/8" require 1/4", 3/8" and 1/2" plugs respectively. Larger knobs in 3/4", 7/8" and 1-1/8" diameters require 5/8", 3/4" and 1" plugs respectively.
All knobs come with a 6-32 x 7/8" flat-head screw for through-hole mounting. For blind-hole mounting, brass insert nuts and set screws are available separately. Barbed brass inserts are 5/32" long by 7/32" in diameter (3/16" drill required). Set screws are 6-32 x 3/8".
Knobs and mandrel made in Canada; insert nuts and set screws made in USA.