| Part No. | Size | Thread Pitch | Thickness |
|---|---|---|---|
| N-820 | 1/4″ (6mm) | 20 | 1/4″ (6mm) |
| N-821 | 3/8″ (10mm) | 16 | 3/8″ (10mm) |
| N-822 | 1/2″ (12mm) | 13 | 3/8″ (10mm) |
| N-823 | 1/2″ (12mm) | 13 | 1/2″ (12mm) |
| N-824 | 5/8″ (16mm) | 11 | 7/16″ (11mm) |
| N-825 | 3/4″ (18mm) | 10 | 7/16″ (11mm) |
| N-828 | 5/16″ (8mm) | 18 | 3/8″ (10mm) |
| N-807 | 7/8″ (22mm) | 9 | 7/16″ (11mm) |
| N-808 | 5/16″ (8mm) | 18 | 3/8″ (10mm) |
| N-809 | 7/8″ (22mm) | 9 | 7/16″ (11mm) |
