Chain Size Grade 40 BBB
| Width | Length | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Chain size | Diameter A |
Outer B |
Inner C |
Outer D |
Pitch E |
|||||
| mm | in | mm | in | mm | in | mm | in | mm | in | |
| 1/4in | 7 .0 | 0.274 | 24.4 | 0.960 | 10.4 | 0.410 | 35.3 | 1.390 | 21.5 | 0.845 |
| 5/16in | 8.4 | 0.330 | 29.5 | 1.160 | 12.7 | 0.500 | 42.9 | 1.690 | 26.2 | 1.030 |
| 3/8in | 10.0 | 0.394 | 35.3 | 1.390 | 15.2 | 0.600 | 51.1 | 2.010 | 31.0 | 1.220 |
| 7/16in | 11.9 | 0.467 | 40.4 | 1.590 | 16.8 | 0.660 | 59.2 | 2.330 | 35.6 | 1.400 |
| 1/2in | 13.0 | 0.510 | 45.5 | 1.790 | 19.6 | 0.770 | 66.3 | 2.610 | 40.4 | 1.590 |
Source: http://coxeng.co.uk/anchoring/chain/