Have a circular head with a larger diameter than regular shorter screws. This design provides a larger bearing surface for even load distribution and preventing it sinking into the material.
| Truss Head | |||
| D | D2[max] | H | N[max] |
| #8 M4.2 | 11.5 | 2.6 | 2.0 |
| #10 M4.8 | 11.5 | 2.6 | 2.0 |
| Truss Head | ||
| Size | Length / inch | Length / mm |
| #8 M4.2 | 1/2" | 13 |
| 5/8" | 16 | |
| 3/4" | 19 | |
| 1" | 25 | |
| 1-1/4" | 32 | |
| 1-1/2" | 38 | |
| #10 M4.8 | 3/4" | 19 |
| 1" | 25 | |
| 1-1/4" | 32 | |
| 1-1/2" | 38 | |
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