Grip-Rite 8DUP30BK 8D Duplex Nail with Brite Shank, Double-Head, 30 Pounds 2-5/8-Inch, 10-1/4 3-1/4-inch by 9-gauge (2-1/4-inch length under lower head) Top Head 15/64-inch; lower head 9/32 inches Non-coated smooth shank 30 pound clear resealable bucket with handle Approximately 90 per pound Meets or exceeds appropriate ASTM and UBC specifications