精度規格
表3 ST形の等価係数
| 呼び形番 | 等価係数：K |
|---|---|
| ナット1個 | |
| ST 6 | 0.726 |
| ST 8 | 0.721 |
| ST 10 | 0.489 |
| ST 12 | 0.421 |
| ST 16 | 0.408 |
| ST 20 | 0.419 |
| ST 25 | 0.42 |
| ST 30 | 0.28 |
| ST 35 | 0.285 |
| ST 40 | 0.252 |
| ST 45 | 0.251 |
| ST 50 | 0.207 |
| ST 55 | 0.206 |
| ST 60 | 0.206 |
| ST 70 | 0.206 |
| ST 80 | 0.186 |
| ST 90 | 0.185 |
| ST 100 | 0.185 |
表4 ST-B形の等価係数
| 呼び形番 | 等価係数：K |
|---|---|
| ナット1個 | |
| ST 8B | 0.444 |
| ST 10B | 0.301 |
| ST 12B | 0.259 |
| ST 16B | 0.251 |
| ST 20B | 0.258 |
| ST 25B | 0.257 |
| ST 30B | 0.171 |
| ST 35B | 0.175 |
| ST 40B | 0.154 |
| ST 45B | 0.154 |
| ST 50B | 0.127 |
| ST 55B | 0.127 |
| ST 60B | 0.127 |
| ST 70B | 0.127 |
| ST 80B | 0.114 |
| ST 90B | 0.114 |
| ST 100B | 0.114 |
