Nails and Spikes - US Standard Dimensions
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Common US wire nails dimensions
| Size1) | Length (in) | Gauge | Nominal Shank Diameter (in) | Nominal Shank Length (in) | Number of Nails in a pound |
|---|---|---|---|---|---|
| 2d | 1 | 15 | 0.072 | 1 | 876 |
| 3d | 1¼ | 14 | 0.083 | 1.25 | 568 |
| 4d | 1½ | 12½ | 0.109 | 1.5 | 316 |
| 5d | 1¾ | 12½ | 0.109 | 1.75 | 271 |
| 6d | 2 | 11½ | 0.12 | 2 | 181 |
| 8d | 2½ | 10¼ | 0.134 | 2.5 | 106 |
| 10d | 3 | 9 | 0.148 | 3 | 69 |
| 12d | 3¼ | 9 | 0.148 | 3.25 | 64 |
| 16d | 3½ | 8 | 0.165 | 3.5 | 49 |
| 20d | 4 | 6 | 0.203 | 4 | 31 |
| 30d | 4½ | 5 | 0.22 | 4.5 | 24 |
| 40d | 5 | 4 | 0.238 | 5 | 18 |
| 60d | 6 | 2 | 0.238 | 6 | 11 |
1) In the United States nails are measured in pennies from the time they were sold by the penny. The abbreviation for pennies was d so nail sizes are described as 2D, 3D, etc.
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