... fluted color:bright,black head:flat,round usage:mainly for buliding construction load:25 tons in a 20" container ... 2"-6",13mm-130mmdelivery time: within 20days for a 20"FUL2 pictures for reference: products packing notice: special packing ... life, service is insurancemain productsshoe tacks nails,blind rivets,concrete nails,common nails,roofing nails, small machine screwyield more than 15000 ...