Secure composite decking boards with GRK's RT (Reverse Thread) composite screws. The reverse threads under the head pull the decking down tight while the W-Cut thread design provides superior holding power in wood joists.

• #8 x 3-1/8" trim head screw - sits flush with deck surface
• Reverse thread design pulls composite boards tight to framing
• Self-tapping W-Cut threads - no pre-drilling required
• Zip-Tip point for fast, easy starts
• Climatek coating resists corrosion in outdoor applications
• Star (Torx T10) drive for reliable, cam-out resistant installation
• 100 screws per box

Ideal for composite decking, window jambs, and door jambs.