GRK FASTENERS 01143 10X434 R4 Star Drive FH 230/ProPak offers a superior fastening solution for both interior and exterior applications, making it an essential choice for decking, stairs, and residential construction projects. This pack includes 230 screws designed with a unique R4™ self-countersinking feature, which utilizes patented cutting teeth and six self-contained cutting pockets. This innovative design acts like a circular saw, effectively removing "drill dust" and creating a clean hole in even the most brittle materials without causing surface damage. The #10 x 4-3/4" screws are engineered for unmatched versatility, allowing for countersinking into hard woods with precision. The screw heads seal the hole securely, preventing any damaged fibers around the head. With extreme threads, these screws provide excellent grip and stability, while the starhead recess ensures non-stripping performance. For added convenience, pre-drilling is unnecessary unless specified by the material. Use the red driver tip for #6 and #8 screws, and the green driver tip for #9 and #10 screws, ensuring a seamless application process. Weighing in at just under 5 pounds, these screws can easily be shipped via UPS, making them a practical addition to your toolkit.

10X434 R4 Star Drive FH 230/ProPak

• Use Red driver tip for #6 and #8 screws
• No Pre-Drilling Unless Material Requires
• Extreme Threads
• Interior / Exterior Use - Decking, Stairs and Residential Construction
• Use Green driver tip for #9 and #10 screws
• Self Countersinking
• Starhead Recess / Non Stripping Heads
• Can Be Used With Fibrous Materials