Product Description The Shimano chainring bolts for Saint 4-arm cranks These Shimano chainring bolts are compatible with Saint FC-M820 and FC-M825 4-arm cranks and have an M8 x 7 mm thread. Four chainring nuts are included. Technical Information:Threads:M8 x 7Compatibility:FC-M820FC-M825also fits FC-M810, FC-M815Manufacturer Number:Y-1N598040 Contents:4 x Shimano FC-M820 chainring bolts4 x Shimano FC-M820 chainring nuts Manufacturer: Shimano Europe B.V. High Tech Campus 92 5656 AG Eindhoven Netherlands info@shimano-eu.com