*Design Factor 5:1 proof tested and certified **Welding plate on UKN-0.75, UKN-2, and UKN-1 is slightly curved. For welding use Electrode AWS A 5.1 E 7018
| MODEL | WORKING LOAD LIMIT (TONS) | B | C | G | H | K | L | S | A | WEIGHT EACH (LBS) |
| UKN-.75 | 0.75 | 0.79 | 2.2 | 0.51 | 0.79 | 0.75 | 3.2 | 0.2 | 0.12 | 0.55 |
| UKN-1 | 1 | 0.79 | 2.8 | 0.67 | 0.99 | 0.99 | 3.7 | 0.24 | 0.16 | 1.2 |
| UKN-2 | 2 | 1 | 3.4 | 0.79 | 1.2 | 1.2 | 4.5 | 0.32 | 0.2 | 2.2 |
| UKN-3 | 3 | 1.1 | 4.1 | 0.91 | 1.2 | 1.4 | 5.2 | 0.39 | 0.24 | 2.9 |
| UKN-4 | 4 | 1.1 | 4.4 | 1.1 | 1.5 | 1.7 | 5.5 | 0.43 | 0.28 | 4.2 |
| UKN-5 | 5 | 1.3 | 5.1 | 1.2 | 1.8 | 1.8 | 6.5 | 0.47 | 0.32 | 6.2 |
| UKN-8 | 8 | 1.3 | 5.2 | 1.5 | 2 | 2 | 6.8 | 0.51 | 0.35 | 8.2 |
| UKN-10 | 10 | 1.9 | 6.6 | 1.7 | 2.3 | 2.2 | 8.7 | 0.55 | 0.35 | 13.9 |
| UKN-15 | 15 | 2.1 | 7.4 | 2 | 2.6 | 2.2 | 9.4 | 0.51 | 0.47 | 19.8 |
