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How to install UltraDeck decking using the T-Clip hidden fastener system. The T-Clip system offers a secure method of fastening UltraDeck Fusion and Rustic Solid deck boards without any fasteners showing and naturally gaps the boards saving you time. For more information about our decking products visit http://www.midwestmanufacturing.com/MidwestManufacturing/productType.do?groupId=1&productTypeId=4