Secure your structural pipe builds to any flat surface with Circo Innovations Screw Tab Caps. Commonly known in the DIY community as a PVC table cap or table screw cap, this heavy-duty, external-fit cap serves as a highly economical and streamlined PVC floor flange alternative. Each cap features three built-in mounting tabs with pre-drilled, countersunk screw holes designed to accept standard #10 fasteners, allowing you to easily nail or screw your PVC structure into wood, drywall, concrete, or metal.