Got my head stud kit today, the documentation tells me to torque to 60Nm after lubricating with their supplied moly grease. Does anyone know what socket I need that will fit the supplied nuts? I have confirmed that a metric 12 will fit but there seems to be a little play. I don't have a metric 11 ring spanner or socket available to test. You can't just use a hexaganol socket, it relies on having 12 faces.