FRH mounts are fail safe marine engine mounts that have a higher profile, The high profile rubber section produces larger deflections and low natural frequencies. These marine engine mounts work the rubber in shear and compression. The protective metal cover has a cross-shaped indentation which enhances its rigidity in mobile applications and improves its ability to resist against oils or liquids which splash onto it, allowing them to flow off of the mount. The metal cover also protects the elastomer inside from dripping oil, diesel, ozone and/or ultraviolet rays which can cause major damage to rubber. All metal parts on DH mounts have an anticorrosive treatment which is suitable for demanding outdoor applications where harsh environmental conditions are present. This treatment is RoHs compliant. Dimension: M14/M16 L175mmxH38mm Materials: Rubber,Metal Shore Hardness: 60 °,Rubber Hardness Tolerance: ± 5 Tensile: 129KN/mm Best Compression: 3.5mm