These steel pan head screws are coated for corrosion resistance.
Length is measured from under the head.
Zinc-plated steel screws resist corrosion in wet environments.
| Cross recessed pan head screws | |||||||
| GB/T818-2000 | |||||||
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| d(mm) | P(mm) | b(mm) | dk(mm) | k(mm) | Recessed No. | ||
| min | min | max | min | max | |||
| M1.6 | 0.35 | 25 | 2.9 | 3.2 | 1.16 | 1.3 | 0 |
| M2 | 0.4 | 25 | 3.7 | 4 | 1.46 | 1.6 | |
| M2.5 | 0.45 | 25 | 4.7 | 5 | 1.96 | 2.1 | 1 |
| M3 | 0.5 | 25 | 5.3 | 5.6 | 2.26 | 2.4 | |
| M3.5 | 0.6 | 38 | 6.64 | 7 | 2.46 | 2.6 | 2 |
| M4 | 0.7 | 38 | 7.64 | 8 | 2.92 | 3.1 | |
| M5 | 0.8 | 38 | 9.14 | 9.5 | 3.52 | 3.7 | |
| M6 | 1 | 38 | 11.57 | 12 | 4.3 | 4.6 | 3 |
| M8 | 1.25 | 38 | 15.57 | 16 | 5.7 | 6 | 4 |
| M10 | 1.5 | 38 | 19.48 | 20 | 7.14 | 7.5 | |


