16D 8 0.165 3.5" 11/32" 20D 6 0.203 4" 13/32" 30D 5 0.22 4.5" 7/16" 40D 4 0.238 5" 15/32" 60D 4 0.238 6" 17/32" 2 0.284 6" 17/32" Types of nail include: Aluminum nails - Made of aluminum in many shapes and sizes for use with aluminum architectural metals ....