... ,ASTM:grade2,grade5 grade8Finishing of carriage boltColoured zinc-plated(galvanized,can be white,blue,yellow,green)Hot dip galvanized(HDG)Nickel-plated ... ,ANSI,BS and so on.2.All of our products can be made into diverse size according to your own willings.3 ... products have a very competitive price which can be seen as the lowest price which can match so high quality product.4.All ...