... mechanical plated,black finished DIN:976 Threaded RodThreaded Rod,such as bright,zinc plated,colourful zine plated ... 1/4"-3/4",3/16"-2"Threaded rod. The product materials have carbon steel,alloy steel ... ,mechanical plated.Years of threaded rod export experience make our threaded rod popular all over the world. ... We can machining the threaded rod with your drawings,with high quality,competitive ...