WA-C safety clamps are used to hold flat joint pipe strings and drill collars. WA-C type safety clamps are suitable for pipe diameters 33/4-155/8in. Products are designed and manufactured according to API Spec 7K requirements.
| Model | Fastening diameter(in) | Number of links |
| WA-C | 33/4-45/8 | 7 |
| 41/2-55/8 | 8 | |
| 51/2-65/8 | 9 | |
| 61/2-75/8 | 10 | |
| 71/2-85/8 | 11 | |
| 81/2-95/8 | 12 | |
| 91/2-105/8 | 13 | |
| 101/2-115/8 | 14 | |
| 111/2-125/8 | 15 | |
| 121/2-135/8 | 16 | |
| 131/2-145/8 | 17 | |
| 141/2-155/8 | 18 |