Product details Place of origin: tianjin, china (mainland) brand name: huhao model number: all sizes type: masonry nail material: steel, carbon steel 55 h length: 1"-4", 1-4" head diameter: common shank diameter: bwg12-6 standard: din Usage: concrete wall Finished: electro galvanized harden: great hardness head type: checkered head diameter: bwg6-12 point: blunt point shank: fluted shank packing: 25 kg per carton in bulk Material: #45 steel , #55 steel Head : checkered , flathead Length:3/4"-4" Diameter:bwg8-bwg12 Finished: electro galvanized, black, yellow zinc coated Shank :smooth shank /twisted shank /grooved shank Point :blunt point Usage : for concrete wall , lime wall Packaging details: 1kg/box, 25kgs/carton, or 25kgs/carton in bulk as common, customers' demand on package is also acceptable.