| 摘要 |
The device has a fastener i.e. nail, including an elongated shank inserted through a collar (20) of a ring element (10) in a fastening direction (30). An object is supported on a counter bearing (40) of the ring element, where the ring element surrounds the shank. The ring element includes a predetermined bending point provided between the collar and the counter bearing. The predetermined bending point includes a bending line (50) that runs perpendicular to the fastening direction. The fastener comprises a head projecting beyond the shank perpendicular to a lengthwise direction of the shank. The objects are made of concrete and wood. |
