Got this item to fit on to an eq6 mount. However, my tripod's location stud has a locking nut which stopped the adapter from sitting flush (by about 3mm). Even removing the locking nut didn't work as the stud (by the way these are genuine parts) is too long to fit the cut out on the adapter. The only solution was to remove the location stud completely, which defeats the reason for the cut out to be there. - I can work with that without bothering to send it back.