6.Size: #4 X 1 inchRound Head, Phillips DriveDesigned to attach wood to wood or hang items onto a wood structured fixtureFeatures a sharp pointed tipDepending on the application and type of wood, a pre-drilled pilot hole is sometimes neededThread Type: Deep, Point Style: SharpSpecification(s) Met: ASME B18.Wood Screw Round Head, Phillips Drive #4 X 1in Zinc Plated Steel 50PK Pilot holes are sometimes needed to avoid splitting the wood.1.