GRK RT #8 x 3-1/8 In. Star Drive White Composite Screw (100 Ct.)

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.

• Specially designed for attaching composite and cellular PVC materials
• Reverse thread design prevents mushrooming to create an even surface
• Trim head provides a clean finished look
• For interior/exterior use
• 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
• Limited lifetime warranty