Wolf Tooth 1x Chainring Bolt Set - 6mm Dual Hex FittingsThese 6mm long bolts are designed for single chainrings that have non threaded standoffs. Uses a double hex head interface so you don't have to use a chainring nut spanner. 6mm length Made in the US out of 7075 T6 Aluminum Has hex heads on both the bolt and nut for easy installation Max torque of 7 8 Nm with light grease on threads only Length 6 Material Aluminum Color Black, Blue, Gold, Gun Metal Gray, Orange, Purple, Raw Silver, Red, Ultraviolet