Commercial overhead door Heavy Duty Hinge mode of 11 gauge Galvanized steel is perfect for commercial doors. These super Heavy Duty hinges come numbered #1-#12, Usually #1 hinges are assigned to the center hinges on doors, and #2 usually between door segment 1 and 2, and the higher the segment the hinge number will go up accordingly depending on Door specifications. These overhead door 11 gauge hinges are made with Galvanized steel and are Rust resistant.
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