| 摘要 |
Screw (2) comprising a head (4) and an elongated body (6) having an end portion (8), said body (6) having a body surface (10), wherein the screw (2) is provided with a thread (12) that extends along a helical thread path along at least part of the body surface (10), said thread (12) having a plurality of windings (14), the thread (12) defining, in between subsequent windings (14), a channel (16) that extends along a helical channel path (18) and has a width (W) in a direction transverse to said helical channel path (18), wherein the screw (2) is further provided, along the body surface (10), with a toothed structure (20) that is positioned in the channel (16). |
