GRK Fasteners R4 02139 Framing and Decking Screw, #10 Thread, 3-1/2 in L, Star Drive, Steel

GRK Fasteners R4 Framing and Decking Screw, Multi-Purpose, Thread Size: #10, Thread Length: 2.362 in, 3-1/2 in L, Drive Type: Star, Drive Size: T-25, Steel, Applicable Materials: Cement, Fiber Board, Melamine, Particle Board, Plastic, Sheet Metal, Wood Features: - Fast bite tip eliminates pre-drilling and provides a fast start for one-step installation - W-Cut™ low torque, faster drive - Precision fit reduces wobble between R4 screws and GRK bits for improved productivity - Zero stripping, with six points of contact - Optimized thread length improves clamping force for increased drawing power - CEE Thread™ enlarges hole to reduce splitting - Cutting teeth cuts wood fiber and provides flush seating - Head markings for easy identification - Climatek™ coating is AC257 code approved for use in treated lumber