| 摘要 |
A sheetrock wall anchor has a hollow body having an axis and a head on one end, and arms which are spaced from one another circumferentialiy and pivot to extend from one end to the opposite end of the body when inoperational, to extend in opposite direction for insertion of the anchor through a hole in a sheetrock wall, and to extend transversely to the body for abutting against a rear surface of the sheetrock wail, and a bush is placed on the body and push onto it by a threaded bolt with a nut. |
