This is a poly mount and is referred to as the \’cotton-reel\’ mount. This mount fits on Leyland mini/moke gear change and rear exhaust mounts on cooper S/other Minis. Has two thread on either end (5/16UNF) and we suggest using nyloc nuts on them GFK3322- make sure you don\’t overtighten. When fitting these, it is very important that you DO NOT twist the mount when installing! Twisting the poly mount or overtightening the nut can lead to the mount tearing and could break in half or reduce the life of the mount.