JCB m6 Connector BOLT ONLY. Part of a set consisting of JCB bolt and Barrel Nut (Cross Dowel). These are BOLTS ONLY. Several bolt lengths available. Bolt head requires 5mm Hex Head Allen Key or similar when fastening. Short lengths are fully threaded whereas 120mm length is half threaded. Finish is Zinc Chromate for rust protection. Sold singularly.