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| Carriage bolts | | ·GB 12-76 GB 14-76 ·DIN 603-81 ·Mechanical properties 4.8 6.8 8.8 |  | | Screw thread (D) | M5 | M6 | M8 | M10 | M12 | M16 | M20 | | P | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | | (b) | L<125 | 16 | 18 | 22 | 26 | 30 | 38 | 46 | | 125<L<200 | 22 | 24 | 28 | 32 | 36 | 44 | 52 | | L>200 | | | 41 | 45 | 49 | 57 | 65 | | dk | max | 15.33 | 16.55 | 20.65 | 24.65 | 30.65 | 38.8 | 46.8 | | min | 12.45 | 15.45 | 19.35 | 23.35 | 29.35 | 37.2 | 45.2 | | ds | max | 5.00 | 6.00 | 8.00 | 10.00 | 12.00 | 16.00 | 20.00 | | min | 4.52 | 5.52 | 7.42 | 9.42 | 11.3 | 15.3 | 19.16 | | f | max | 4.1 | 4.6 | 5.6 | 6.6 | 8.75 | 12.9 | 15.9 | | min | 2.9 | 3.4 | 4.4 | 5.4 | 7.25 | 11.1 | 14.1 | | k | max | 3.3 | 3.88 | 4.88 | 5.38 | 6.95 | 8.95 | 11.05 | | min | 2.7 | 3.12 | 4.12 | 4.62 | 6.05 | 8.05 | 9.95 | | R1 | ≈ | 10.7 | 12.6 | 16 | 19.2 | 24.1 | 29.3 | 33.9 | | R2 | max | 0.5 | 1.5 | 0.5 | 0.5 | 1 | 1 | 1 | | R3 | max | 0.75 | 0.9 | 1.2 | 1.5 | 1.8 | 2.4 | 3 | | V | max | 5.48 | 6.48 | 8.58 | 10.58 | 12.7 | 16.7 | 20.84 | | min | 4.52 | 5.52 | 7.42 | 9.42 | 11.3 | 15.3 | 19.16 |
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