Shouldered 5/16"unf bolts for the Mini clutch backplate to the diaphragm, not for heavy duty use or racing. Only tighten up to 16lbs per sq foot torque when using shake proof washer (GHF323) or 18lbs if using flat washer and locktite. Only use
C-2A3657 for anything other than standard as this is flanged and in high grade material.