Shutter Dog Pair. Window Shutter Dog Steel 7 1/2 in. H Propeller for Wood/Masonry Mount. These Propeller shutter dogs combine distinctive style, function & the remarkable durability of cast steel. Our Exclusive RSF finish make our shutter dogs rustproof & weatherproof while keeping a luxurious matte finish for years to come. Reclaim those shutters with hassle-free installation & heavy-duty lag bolts 4 1/4 in. long for wood or masonry installation. Whether you are replacing old shutter dogs or looking for that Old World Charm these dogs are built to last. Sold as a Left & Right pair. Measures: 7 1/2 in. H.