PEM
自樁螺絲
隱藏式螺絲
產品說明
| 最主要功用在安裝於限制金屬板件不得穿孔或須保持平整的地方，此物件開孔時不得銑削穿孔，需為盲孔式 |
| Installed into a blind milled hole where surface opposite stud must remain
unmarred. Thread sizes #4 to 1/4" and M3 to M6. |