camera adapter screws 1 / 4 to 3 / 8 Inch conversion nut for tripod monopod ballhead mount accessories copper The adapter swaps the 1 / 4 " 3 / 8 " camera, the tripod, the one-leg, well-matches the legs and head of the different tripod 5PCS / Set widely used for DSLR camera camcorder tripod monopod Used for 1 / 4 " 3 / 8 " screws as common tripod adapter