scrubolt self cutting thread concrete anchor galvanised 10 x 75mm trade box of 50

threadcutting concrete and masonry anchors made from high strength forged steel, cuts its own thread in concrete and masonry when tightened, no plugs required, suitable for heavy duty fixing without expansion in solid masonry, stone, rock and concrete, galvanised for maximum corrosion protection, fastens material up to 35mm thick, drill size 10mm