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butt hinges with fixed pins, commonly used for doors, cabinets, and windows.Key CharacteristicsMaterial: Solid brass or brass-plated steel.Pin Style: Fixed pin with rounded finial tips at the top and bottom.Hole Pattern: Countersunk holes designed for flat-head screws to sit flush.Available Sizes: 2-inch, 21⁄2-inch, and 3-inch options.