EXPRESS NAIL STEEL BLUE ZINC PLATING/YELLOW ZINC PLATING LAG SCREW SHIELD SIZES:1/4,5/16,3/8,1/2,5/8,3/4 LAG SCREW SHIELDZINC ALLOYSIZES:1/4,5/16,3/8,1/2,5/8,3/4CAN BE USED IN ALL TYPES OF MASONRY FROM CONCRETE TO BRICKRUST -PROOFUNIQUE FOUR-WAY EXPANSION ASSURES A TIGHT GRIP EVEN IN OUT-OF-ROUND HOLES.Packaging & Delivery Packaging Detail:bag+Carton+palletDelivery Detail:accroding to order QTY, ...