Abstract: An exchangeable anchor assembly comprising a free end adapted to be connected to a line, with two parallel crown plates disposed at opposite ends of the stem and sandwiching the stem therebetween. Carried between the crown plates are a pair of stop-limit elements to limit the extent of angular rotation of the stem between the stop-limit elements relative to the crown plates. A cross bar is provided for supporting the crown plates in a fixed position thereto and for carrying two or more combined fluke units having a sleeve connection. A stabilizer unit is provided which includes a pair of angularly displaced wing elements connected with each crown plate. Lock straps are provided to hold the entire unit on the cross bar and to permit relative movement of the stem about the cross bar with such movement limited by the stop-limit elements connected between the crown plates.