| Code | Description |
| 631001~631038 | Metric Coarse Thread, 3pcs/Set, M1.0~M48, Carbon Steel |
| 631051~631088 | Metric Coarse Thread, 3pcs/Set, M1.0~M48, High Speed Steel |
| 631101~631194 | Metric Fine Thread, 3pcs/Set, M1.0~M50, Carbon Steel |
| 631201~631294 | Metric Fine Thread, 3pcs/Set, M1.0~M50, High Speed Steel |
| 631301~631324 | Whitworth Coarse Thread, 3pcs/Set, 1/16″~2″, Carbon Steel |
| 631326~631349 | Whitworth Coarse Thread, 3pcs/Set, 1/16″~2″, High Speed Steel |