Product Description Shimano crank bolt for Saint FC-M820 - left crank arm attachment This Shimano crank arm bolt is compatible with the Saint cranks FC-M820, FC-M825 and their predecessors FC-M810 and FC-M815. It is used to assemble and seal the left Hollowtech II crank arm. Compatibility:FC-M810FC-M815-1FC-M815-2FC-M820FC-M825Manufacturer Number:Y-1KK13000 Contents:1 x Shimano crank bolt Manufacturer: Shimano Europe B.V. High Tech Campus 92 5656 AG Eindhoven Netherlands info@shimano-eu.com