GRK GRK-00105 - R4 Multi-Purpose Wood Screws, #8 x 2-1/2", 100-PackThe GRK 00105 R4 Multi Purpose Screws are engineered for elite performance in wood, particle board, plastic, sheet metal, and composite materials. Designed to eliminate the need for pre drilling, these high tensile strength screws feature a patented thread design that reduces torque and prevents wood splitting. The R4's under head cutting teeth act like a circular saw blade, creating a perfectly clean countersunk hole for a professional finish every