7/16in flat head. 11-gauge diamond point. Wide head aids holding and reduces pull through. For asphalt shingles, roofing felt, or insulating board. 5 lb. box. No. 708327: Finish: Electro Galvanized, Length: 7/8in, Head Type: Flat, Diameter: 11 ga, Head Diameter: 7/16in, Pkg Size: 5 lb No. 708399: Finish: Electro Galvanized, Length: 1in, Head Type: Wide Flat, Diameter: 11 ga, Head Diameter: 7/16in, Pkg Size: 5 lb No. 708522: Finish: Electro Galvanized, Length: 1-1/4in, Head Type: Wide Flat, Diameter: 11 ga, Head Diameter: 7/16in, Pkg Size: 5 lb No. 708674: Finish: Electro Galvanized, Length: 1-1/2in, Head Type: Wide Flat, Diameter: 11 ga, Head Diameter: 7/16in, Pkg Size: 5 lb No. 708782: Finish: Electro Galvanized, Length: 1-3/4in, Head Type: Wide Flat, Diameter: 11 ga, Head Diameter: 7/16in, Pkg Size: 5 lb No. 709093: Finish: Electro Galvanized, Length: 2in, Head Type: Wide Flat, Diameter: 11 ga, Head Diameter: 7/16in, Pkg Size: 5 lb No. 709328: Finish: Electro Galvanized, Length: 2-1/2in, Head Type: Wide Flat, Diameter: 11 ga, Head Diameter: 7/16in, Pkg Size: 5 lb No. 732168: Finish: Electro Galvanized, Length: 3in, Head Type: Wide Flat, Diameter: 11 ga, Head Diameter: 7/16in, Pkg Size: 5 lb No. 761529: Finish: Electro Galvanized, Length: 1/2in, Head Type: Wide Flat, Diameter: 11 ga, Head Diameter: 7/16in, Pkg Size: 5 lb No. 761543: Finish: Electro Galvanized, Length: 3/4in, Head Type: Wide Flat, Diameter: 11 ga, Head Diameter: 7/16in, Pkg Size: 5 lb