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Thumb knob

A fluted knob with a hex pocket a nut presses into, or a round hole: hand-tightened bolts on jigs, clamps and fences.

1.45 x 1.45 in

Shown in Birch plywood, .250 in

All templates
Knob
in
in

Size of the scallops around the edge.

Centre hole

A hex hole a nut presses into. Off for a round hole.

in

Across the flats for a nut (7/16 in fits a 1/4-20 nut), or the diameter of a round hole. 0 for none.

The laser's cut makes the nut pocket a hair loose, so set the nut in with a drop of glue. For a knob that hides the nut, cut a second one with a round hole for the bolt and glue them together.