Anchor assembly for arrangement in seabed comprising a main tube provided with foldable wings movably arranged in recesses of the main tube by being hinged in upper end of the recesses, which wings in initial position is aligned with outer surface of the main tube, where the foldable wings are provided with a centered curved main support element extending in a plane perpendicular to inner surface of the wing and wherein rear part of the main support element is provided with a notch, constriction or recess determining the number of degrees the wing is to exhibit in relation to the main tube in deployed state.