| 摘要 |
EXPANSION PEG An expansion peg is provided including a tubular socket threaded at one end and split and expandable at the other end, inside the socket, a first wedge intended to come into abutment against the bottom of an anchorage hole and a second wedge detachably secured to the first one and intended, under the action of a striking tool, to become disengaged from the first wedge and to cooperate therewith for causing expansion of the split end of the socket. |
