Threaded bolt in particular for joining fittings to wooden part, comprises ribbed collar and structured lower surface at head

摘要

The screw (1) has a threaded shaft (4,8) and a flat head (2) and is particularly suitable for being guided through a hole in a fitting into a predrilled bore located at a furniture part or similar wooden object. A collar (10) between the head (2) and the threaded segment (8) is provided with four ribs (14) symmetrically distributed across the surface. The lower side (16) of the head (2) has a structured surface (20) for the creation of additional friction. An independent claim is given for a fitting to be used with the bolt.