It is good for construction etc.. 1) Over Round head , Smooth Shank , Needle Point ,Blue or black Finish 2) ... , stone and masonry strcture and other building construction purpose .Packing : 1) In small box of 100 pcs , 10 such boxes in ... of which in a carton 2) In small box of 1 kg each , 20 boxes in a carton 3) Loose in ...