Head designed to sink flush with surface. VC coating lubricates wood, holds fast in framing. Easy driving for sturdy, permanent construction. No. 722150: Size: 4D, Length: 1-3/8in, Pkg Size: 1 lb, Diameter: 14 ga, Finish: Vinyl Coated No. 722169: Size: 6D, Length: 2in, Pkg Size: 1 lb, Diameter: 13 ga, Finish: Vinyl Coated No. 708595: Size: 8d, Length: 2-3/8in, Pkg Size: 1 lb, Diameter: 11-1/2ga, Finish: Vinyl Coated No. 722178: Size: 10D, Length: 3in, Pkg Size: 1 lb, Diameter: 11 ga, Finish: Vinyl Coated No. 722187: Size: 12D, Length: 3-1/4in, Pkg Size: 1 lb, Diameter: 10 ga, Finish: Vinyl Coated No. 708602: Size: 16d, Length: 3-1/4in, Pkg Size: 1lb, Diameter: 9 ga, Finish: Vinyl Coated No. 722196: Size: 20D, Length: 4in, Pkg Size: 1 lb, Diameter: 7 ga, Finish: Vinyl Coated