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Wood Screw
These screws are designed to fasten to wood. Most have a unthreaded portion under the head. This unthreaded shank makes it easier to fasten wood to wood. Most have a tapered head that sits flush when installed, but some have a round head.
Dimensions
| Size | TPI | Dia. |
|---|---|---|
| 2 | 26 | 0.086 |
| 3 | 24 | 0.099 |
| 4 | 22 | 0.112 |
| 5 | 20 | 0.125 |
| 6 | 18 | 0.138 |
| 7 | 16 | 0.151 |
| 8 | 15 | 0.164 |
| 9 | 14 | 0.177 |
| 10 | 13 | 0.190 |
| 12 | 11 | 0.216 |
| 14 | 10 | 0.242 |
| 16 | 9 | 0.268 |
Threads per inch can vary slightly