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The JACKSON 20400B Center-Hung Side-Load Arm Assembly is designed for compatibility with 1/2 inch depth top rails featuring a notch on the side of the door. This assembly includes an adjusting screw that allows for precise adjustments to align doors with jambs, along with bolts for centering the door accurately. It serves as a replacement component for the International 3010-S model.
The JACKSON 20400B is an essential replacement arm used with Jackson-CRL concealed overhead closers.
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