| Taper Size | Designation | GPL(L) | L1 | L2 | OD(D) | G |
|---|---|---|---|---|---|---|
| BT-30 | SP-BT-3M-43 | 40 | 11 | 16 | 30 | M5 |
| SP-BT-3M-44 | 40 | 13 | 18 | 40 | M6 | |
| BT-40 | SP-BT-4M-44 | 45 | 13 | 18 | 40 | M6 |
| SP-BT-4M-44 | 45 | 13 | 18 | 40 | M6 | |
| SP-BT-3M-55 | 50 | 13 | 21 | 50 | M6 | |
| BT-50 | SP-BT-5M-64 | 60 | 13 | 18 | 40 | M6 |
| SP-BT-5M-65 | 60 | 13 | 21 | 50 | M6 |
