Timco Stainless Steel Threaded Bars (Silver) - M20 x 1000mm (5 Pack Bag) (20TBSS) These A2 stainless steel threaded bars are coomonly used for suspending cable trays from the ceiling with drop in anchors or chemical resins. The bar ends are coloured green to make it much easier to identify the material of the bars whilst working with a selection of threaded bars. Made from A2 stainless steel which means that these threaded bars can be used in corrosive enviroments / materials which are exposed to water reguarly.