It is JIS standard shackle.
Dee Shackles is named after its shape similar to the letter "D".
The entrance of the shackle is the same width as the entire body of the shackle, which makes Dee Shackles an ideal choice for standard rigging, connecting chains, and cranes, and is very suitable for confined spaces that require smaller dimensions.
| Size | A | B | C | D | E | WLL |
| mm | mm | mm | mm | mm | mm | Kg |
| 4 | 16 | 8 | 8 | 4 | 4 | 50 |
| 5 | 20 | 10 | 10 | 5 | 5 | 80 |
| 6 | 24 | 12 | 12 | 6 | 6 | 100 |
| 8 | 32 | 16 | 16 | 8 | 8 | 200 |
| 10 | 40 | 20 | 20 | 10 | 10 | 320 |
| 12 | 48 | 24 | 24 | 12 | 12 | 520 |
| 14 | 56 | 28 | 28 | 14 | 14 | 700 |
| 16 | 64 | 32 | 32 | 16 | 16 | 800 |
| 18 | 72 | 36 | 36 | 18 | 18 | 990 |
| 20 | 76 | 40 | 40 | 20 | 20 | 1100 |
| 22 | 88 | 44 | 44 | 22 | 22 | 1500 |
| 25 | 100 | 50 | 50 | 25 | 25 | 2100 |
| 28 | 112 | 56 | 56 | 28 | 28 | 3000 |
| 32 | 128 | 64 | 64 | 32 | 32 | 3500 |
| 36 | 144 | 72 | 72 | 36 | 36 | 4600 |
| 38 | 152 | 76 | 76 | 38 | 38 | 5000 |
