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 import/export of European machines. All chains are manufactured from a 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 roller chain.