ISO 8678 vs DIN 603
Carriage Bolt
- Interchangeable
- Not exactly. Same thread, but the head height differs at 6 sizes (M12: 6.95 mm in DIN 603, 6.8 mm in ISO 8678); the head diameter is smaller in ISO 8678 at 6 sizes (M12: 30.65 mm in DIN 603, 26.6 mm in ISO 8678). Order to the number on your drawing.
- Which to order
- The number on your drawing. We make both: ISO 8678 and DIN 603.
- Sizes
- M6 to M20 in both. DIN 603 also has M5.
| Size | dkHead Diameter | fSquare Neck Height | fSquare Neck Height | kHead Height | kHead Height | vSquare Neck Width | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ISO 8678 | DIN 603 | ISO 8678 | DIN 603 | ISO 8678 | DIN 603 | ISO 8678 | DIN 603 | ISO 8678 | DIN 603 | ISO 8678 | DIN 603 | |
| M6 | 14.2 | 16.55 | 3 | 4.6 | 2.4 | 3.4 | 3.6 | 3.88 | 3 | 3.12 | 5.88 | 5.52 |
| M8 | 18 | 20.65 | 3 | 5.6 | 2.4 | 4.4 | 4.8 | 4.88 | 4 | 4.12 | 7.85 | 7.42 |
| M10 | 22.3 | 24.65 | 4 | 6.6 | 3.2 | 5.4 | 5.8 | 5.38 | 5 | 4.62 | 9.85 | 9.42 |
| M12 | 26.6 | 30.65 | 4 | 8.75 | 3.2 | 7.25 | 6.8 | 6.95 | 6 | 6.05 | 11.82 | 11.3 |
| M16 | 35 | 38.8 | 5 | 12.9 | 4.2 | 11.1 | 8.9 | 8.95 | 8 | 8.05 | 15.82 | 15.3 |
| M20 | 43 | 46.8 | 5 | 15.9 | 4.2 | 14.1 | 10.9 | 11.05 | 10 | 9.95 | 19.79 | 19.16 |