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| Nominal size (thread size d of associated bolt) | M16 | M20 | (M22)* | M24 | (M27)* | M30 | M36 |
|---|---|---|---|---|---|---|---|
| d1 Min |
18 | 22 | 24 | 26 | 30 | 33 | 39 |
| Max | 18.43 | 22.62 | 24.52 | 26.52 | 30.52 | 33.62 | 39.62 |
| d0 Min |
32.4 | 40.4 | 42.4 | 48.4 | 54.1 | 58.1 | 70.1 |
| Max | 34 | 42 | 44 | 50 | 56 | 60 | 72 |
| s Min |
3.1 | 3.1 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 |
| Max | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 |
Disclaimer - Dimensional data and technical information for IS 6649 was obtained from publicly available sources and not acquired through standards agencies. It has been completed and compiled for reference purposes only; where discrepancies are found they are subject to change without notice. Aim Tech makes no warranties or representations regarding the accuracy and validity of the compiled information and data. Contact the relevant standards authorities for accurate and detailed information.