Metric roller chain is a British standard chain that conforms to BS/DIN/ISO industry standards. The metric chains are very similar to the standard ANSI roller chains, but do have different dimensions. This chains are typically found on machines imported from Europe or machines that are being manufactured for export to the European market. Like standard roller chain, these are also stocked in single, double and triple strand options.b We also offer stainless steel metric roller chain for applications that require a corrosive resistant or temperature resistant roller chain.