To provide an anchor which permits to join the butt part of a perforated brick and an aerated concrete block which are different in height dimension.

An anchor body 8 which is formed by fixing the rear end parts of two metallic plates 6 and 6 which are superposed in such a way as tapered parts 5 and 5 provided at the tips face to each other and a bendable body 9 the tip part of which is fixed to the rear end part of the anchor body 8 constitute an anchor 4, after the bendable body 9 is bent to drive the anchor body 8 into an aerated concrete block, the bendable body 9 is returned to a horizontal attitude to be embedded into joint mortar between holed bricks so that it is possible to joint the butt part of the hold brick and the aerated concrete block which are different in height dimension.