It is good for construction etc.. 1) Over Round head , Smooth Shank , Needle Point ,Blue or black Finish 2) Flat with contersunk head , Smoth shank , Diamond Piont ,Blue Or Black Finish Uses :For concrete walls, stone and masonry strcture and other building construction purpose .Packing : 1) In small box of 100 pcs , 10 such boxes in a medium box , then several of which in a carton 2) In small ...