1/4″ female thread attachment type
3/8″ screw attachment type
Material is steel with nickel plated
Rubber gasket included
Base diameter is 30mm.
This product can install on 3/8″-16 thread hole and provide a 1/4″-20 thread hole,convert 3/8″-16 female to 1/4″-20 female,use on camera tripod and quick-release plate.
1 X 1/4″ female to 3/8″ male Adapter