A brick pin fixing kit with everything needed for concealed masonry stitching. Suitable for connecting walls and repairing cracks in brick and stone structures. Heavy duty masonry stitching bars are bonded into pre-drilled holes to stitch cracks in masonry or to bond together cross-walls. Tensile forces are redistributed along the full length of the helical tie bars, to effect masonry repairs that stabilise and strengthen areas of wall failure - whether upgrading buildings, bridges or tunnels.