| SPT 樹脂ネジ（六角ボルト） | ||||
| M(呼び) | B | C | L1 | L |
| M3 | 5.5 | 6.35 | 2 | 6,8,10,12,16,20 |
| M4 | 7 | 8.09 | 2.8 | 8,10,12,16,20,25 |
| M5 | 8 | 9.24 | 3.5 | 10,12,16,20,25,30 |
| M6 | 10 | 11.55 | 4 | 12,16,20,25,30,40 |
| M8 | 13 | 15.02 | 5.3 | 16,20,25,30,40,50 |
| M(呼び) | B | C | L1 | L |
| M10 | 17 | 19.64 | 6.4 | 20,25,30,40,50,60 |
| M12 | 19 | 21.95 | 7.5 | 25,30,40,50,60,70 |