771768產(chǎn)品概述
Self Assembly Thumb Screw Knobs
Thumb screw knob caps which can be assembled into complete threaded knobs by inserting a socket head cap screw (not supplied here) into the base of the cap.,Join by pressing squarely together. To avoid over-pressure, use a stop or spacer equivalent to length of screw less depth of screw head. Manufactured from Matt Black Delrin Acetal