We started trying to plug and screw the straps to the blockwork.  However, at the moment the inner leaf of masonry is higher than the outer leaf.  This made it very difficult to get an adequate fixing into the outer leaf.  We also believe the bricklayer wants to build up the rest of the inner leaf before the outer leaf of masonry, so fixing the strap to the outer leaf wasn't going to get any easier!  


So we came up with an alternative solution instead.  We cut up lengths of threaded rod (studding) and wound a nut on one end...