Flat Countersunk Type 1 Shape
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Technical Data
Head has a 90 degree angle
| Screw diameter | Machine screw Pitch | No. of Phillips recess | a Head diameter size minimum | a Head diameter size maximum | b Head thickness size minimum | b Head thickness size maximum |
| M1.2 | 0.25 | 0 | 1.7 | 1.85 | 0.35 | 0.4 |
| M1.4 | 0.3 | 0 | 1.9 | 2.05 | 0.4 | 0.45 |
| M1.6 | 0.35 | 0 | 2.26 | 2.4 | 0.4 | 0.5 |
| M1.7 | 0.35 | 0 | 2.4 | 2.55 | 0.45 | 0.5 |
| M2 | 0.4 | 0 | 2.8 | 3.05 | 0.52 | 0.6 |
| M2.3 | 0.4 | 0 | 3.3 | 3.55 | 0.62 | 0.7 |
| M2.6 | 0.45 | 0 | 3.8 | 4.05 | 0.72 | 0.8 |
