1,size:M2-M10 2.material:carbon steel 3,offered by manufactory 4,high quality ... ,best price Cross Self Tapping Screw 1) Material: Carbon steel2) Length: 13mm ~ 254mm (1/2" - 10") ... Shandong province, China,and we are one of the leading manufacturer of self-tapping screws this area.Features:1) ... cartons Besides,we also produce many other kinds of nails ,such as shoe nails,cement nails,common ...