扣式塞头
材质：尼龙66
用途：可作为预备孔或将其多余孔塞平之用，保持盘面的美观。
| ITEM NO | A | B | C |
| HP-5 | 5.0 | 6.3 | 5.9 |
| HP-6 | 6.0 | 7.8 | 7.8 |
| HP-8 | 7.9 | 10.3 | 8.1 |
| HP-10 | 9.5 | 13.0 | 10.5 |
| HP-13 | 12.7 | 16.5 | 10.9 |
| HP-15 | 14.3 | 16.7 | 10.3 |
| HP-16 | 15.9 | 19.5 | 10.0 |
| HP-19 | 19.1 | 22.9 | 10.0 |
| HP-22 | 22.2 | 25.8 | 11.3 |
| HP-25 | 25.4 | 29.0 | 11.6 |
| HP-30 | 30.1 | 34.2 | 12.0 |
| HP-38 | 38.1 | 42.1 | 11.2 |
| HP-45 | 44.5 | 49.7 | 11.8 |
