| 摘要 |
<p>An anchor bolt system (10) comprises a threaded rod (12) to be installed in a hole provided in a substrate and a drive receiving device (14) to be gripped by a rotary driving device to rotate the threaded rod during installation in such a hole. The threaded rod has a leading end (28), a trailing end (26), external threading (24) and a transverse surface (34) at the trailing end. The drive receiving device is provided with a formation by which the drive receiving device is releasably securable to the trailing end of the threaded rod and a stop surface to engage the transverse surface of the threaded rod.</p> |
