Published on July 20, 2019. Set Screws Door Knob. 12 new steel set screws metric 7 pitch 1 0 door knob antique doorknob ebay, 10 set / grub screws for old door knob spindles 3/16 x 1/2" whitworth imperial ebay. How to replace door knobs and deadbolts pretty handy girl. Ristar Cluster.