
| B-1N | |
|---|---|
| GUN TYPE | STUD SIZE |
| PRO-WELD | 1/8 – 1/2 |
| NELSON NS-20 | 1/8 – 1/2 |
| B-2N | |
|---|---|
| GUN TYPE | STUD SIZE |
| PRO-WELD | 5/8 – 3/4 |
| NELSON NS-20 | 5/8 – 3/4 |

| B-3N | |
|---|---|
| GUN TYPE | STUD SIZE |
| PRO-WELD | 7/8 – 1" |
| NELSON NS-20 | 7/8 – 1" |
| B-4N/B-5N | |
|---|---|
| GUN TYPE | STUDSIZE |
| BANTAM A-58 | 1/8 – 1/2 |
| BANTAM A-58 | 5/8 – 3/4 |

| B-6N/B-7N | |
|---|---|
| GUN TYPE | STUD SIZE |
| PRO-WELD | 1/8 – 1/2 |
| NELSON NS-20 | 5/8 – 3/4 |