GRK RT Composite screw is a specially designed fastener for attaching composite and cellular PVC materials. The RT Composite has a reverse threading under the head of the fastener that helps the screw head disappear beneath the surface and eliminate mushrooming when installing Composite materials. RT Composite Screws have a Climatek Coating for installation in both interior and exterior conditions where exposure to moisture is intermittent and is code-approved for use in treated lumber.
White color provides an ideal finish
Specially designed for attaching composite and cellular PVC material
Reverse thread design prevents mushrooming to create an even surface
Trim head provides a clean finished look
Zip-tip allows for no-pre drilling and one step installation
Star drive eliminates stripping for improved productivity
W-cut low installation torque allows for fast driving and ease of install
ESR-3201 approved for trim applications
Limited lifetime warranty