GRK Fasteners 01139 10X312 R4 Star Drive Flat Head Screw 300/ProPak

GRK FASTENERS 01139 10X312 R4 Star Drive FH 300/ProPak offers building professionals and knowledgeable homeowners a superior fastening solution. This pack contains 300 of GRK's R4™ self-countersinking screws, designed specifically to tackle a variety of interior and exterior applications, including decking, stairs, and residential construction. With patented cutting teeth and six self-contained cutting pockets, the R4™ screw functions like a circular saw blade, effortlessly removing drill dust and creating clean holes in even the most brittle materials. This innovative underhead design ensures that the screw countersinks smoothly into the hardest woods without damaging surface treatments or leaving behind unsightly fibers. The R4™ screws feature a starhead recess that prevents stripping, making installation easier and more reliable. Pre-drilling is generally unnecessary unless the material specifically calls for it, enhancing efficiency on the job. For optimal performance, use a red driver tip for #6 and #8 screws, and a green driver tip for #9 and #10 screws. Each screw measures #10 x 3-1/2", making them versatile for a wide range of projects. With a weight of 4.53 lbs, this Pro Pak is an excellent addition to any toolbox, ensuring you have the right fasteners at hand for your next build.

10X312 R4 Star Drive FH 300/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