The Heavy Duty Galvanized Steel Thimblesbetter resistance to corrosion than the standard zinc plated. Hot dip galvanized is done with zinc also but the key is the thickness of the coating, with hot dip being several times thicker than the zinc plated. These steel thimbles are made to meet or exceed Federal Specification FF-T-276b, Type III. Galvanized rope thimbles can be used for exterior purposes as well as interior and are produced for much larger wire diameters. Wire rope thimbles are inserted at the terminated end of a wire loop to help protect the eye from degradation and deformation. For extreme moisture or high corrosive environments, try our stainless steel cable thimbles in the Rigging Supplies and Marine Hardware category. If you need assistance with our products, please feel free to contact our sales associates toll free at 866-444-9990.