The Zacuto ZUD 1/4 20" male (retrofit any 1/4 20 female with Z-Release) is used to retrofit your existing articulating arm, giving you Zacuto Z-Release (quick release) action on one or both ends of the articulating arm. ZUDs convert your 1/4 20" or 3/8 16" screws to 15mm rods, thus allowing them to fit into Zacuto Z-Release components like Z-mount, 15mm Z-locks, ZicroMount and all other Zacuto 15mm locking devices. An additional feature of a ZUD; any Zacuto male rod can screw into the end of the ZUD allowing you to create an extension to your articulating arm. The articulating arm is not included.
More information about Zacuto Products (Link to Zacuto Website)