| 摘要 |
<p>The dowel screw (14) has a screw head (20), a screw shaft (17) and a screw point (15) with a thread (16) for screwing into the dowel socket and for stressing the braceable area. Adjacent to the screw head is a thread device (19), which works in conjunction with the dowel socket to form a screw engagement between the screw and the dowel. The thread device of the screw, on being screwed into the dowel socket, forms and/or cuts a thread. The dowel socket (2) has a dowel head (3) for location on the side of the frame (11) turned away from the brickwork (1).</p> |
