GRK TOP STAR ADJUSTABLE SHIM SCREWS Window Door 772691201577, 772691201614

For Shim Free installation: of wooden doors, windows, insulation, paneling, built-in wall units and cabinets. Step2 - Drive screw until outer screw is flush with jamb using Crown Bit (Not Included). Step 3 - Adjust inner screw using T20 TORX Bit (Bit not included).

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