What Is 3/8 + 1/4
Oben thread reducer 1039 screw bushing tripod ob heads convert replacement part Screw tripod 20 gitzo head ball adapter male threaded pro body reversible camera insert attachment key features Oben 3/8"-16 to 1/4"-20 reducer bushing ob-1039 b&h photo video
Gitzo 1/4-20" & 3/8"-16 Reversible Tripod Screw D0702.01 B&H
Gitzo 1/4-20" & 3/8"-16 reversible tripod screw d0702.01 b&h
