| 摘要 |
A removable anchorbolt 30 comprises a shank 39 having a helical or threaded substrate engagement portion 35 and a drive head portion 37. The distal end of the anchorbolt is inserted into a concrete mix and the concrete allowed to set, but the concrete does not bond to the threaded portion and as a result removed by rotating the drive portion. A flange element may be provided to rest on the wet concrete. |
