Here is a very nice curved metal lag screw bracket marked only with an M in the crook. It measures 4 ¼" from the base plate to the outside of the cob, and the arm is 4 ¼" from the bottom of the curve to the top of the cob. There are two set screw slots on each side of the base plate, and the lag screw is 2" long. Asking $9 plus postage for this one.