We have added a M8 version to our Hexagon spanner fix mounts. Use as a low cost auto replacement part, hex shaped metals avoid twisting of rubber during installation. Typical use is for exhausts and radiators. Mountings can be used in compression, shear or a combination of both. Our M8 version is 19mm high with M8 threads either end. They suits up to 8kg in compression and 7kg in shear per mount. Made of 45 Shore A rubber.