The Nitro metric roller chain is manufactured to the BS/DIN/ISO industry standards. Our metric chains are available in single, double & triple row and stocked from 04B up 32B metric sizes. Metric roller chain is a very commonly used chain in the USA, due to the importing of European made machines over many years. All chains are manufactured from quality carbon steel components that undergoes shot peening and heat treatment. We also offer stainless steel metric roller chain for applications that require a corrosive resistant or temperature resistant roller chain.