KS-141 / 1/4” MALE TO 1/4” FEMALE SCREW ADAPTER
Features a 13mm ( 0.5") long 1/4"-20 threaded stud on top and a 1/4"-20 socket on the bottom. The adapter's edge is knurled for a secure grip while turning it, and this helps you attach a camera to a bracket or mount a tripod head to a tripod.