Security Screws Pan Head Y Shape Drive Stainless Steel 304
| Thread Size (d) | Pitch | Head Dia. (dk) | Head Thickness (k) | Y (m) |
| M2 | 0.4 | 4-3.7 | 1.72-1.48 | Y2.0 |
| M2.5 | 0.45 | 5-4.7 | 2.12-1.88 | Y2.5 |
| M3 | 0.5 | 6-5.7 | 2.52-2.28 | Y3.0 |
| M4 | 0.7 | 8-7.64 | 3.25-2.95 | Y4.0 |
| M5 | 0.8 | 10-9.64 | 3.95-3.65 | Y5.0 |
| M6 | 1.0 | 12-11.37 | 4.75-4.45 | Y6.0 |
| M8 | 1.25 | 16-15.57 | 6.15-5.85 | Y8.0 |
