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Floor Screw
These screws are specially designed to attach wood to metal in trailers or trucks. They are a type of thread cutting screw, where the tip acts like a tap and can cut threads into a pre-drilled hole in metal. They head is tapered to sink into the wood and features a torx drive to prevent stripping.
Other Names: Floorboard Screw
Dimensions
| Dia. | Thread | Torx | Head Height | Gage Thick | Drill Bit |
|---|---|---|---|---|---|
| 8 | 32 | T15 | 0.100 | 0.040 - 0.051 | 26 |
| 10 | 24 | T20 | 0.116 | 0.050 - 0.065 | 17 |
| 12 | 24 | T25 | 0.132 | 0.055 - 0.070 | 8 |
| 1/4 | 20 | T30 | 0.153 | 0.075 - 0.090 | 1 |
| 5/16 | 18 | T40 | 0.191 | 0.087 - 0.105 | L |
| 3/8 | 16 | T40 | 0.230 | 0.115 - 0.135 | T |