Bonding objects together

A connector for being bonded to an item, the item being a car component of a part of a car body wherein:

• the connector extends between a proximal end and a distal end and comprises a connector body forming a proximal surface and a distal surface, and
• the connector comprises thermoplastic material in a solid state,
• the connector comprises a plurality of protrusions that protrude from the distal surface and being spaced from one another,
• the protrusions comprise the thermoplastic material at outer surfaces, and
• the connector is equipped to attach a further object to the proximal end of the connector, wherein
• the connector comprises a structure designed and arranged to promote local compression of the item when forced into the item,
• wherein the structure is provided by a shape of barbs arranged at the distal end of the protrusions, wherein the barbs each comprise at least two pointed ends with a V-shaped, a U-shaped or a W-shaped indentation therebetween,
• such that the connector is adapted to be bonded to the item at bonding locations comprising bonding points that are separate from each other.

A fixation element designed to be bonded to an item, wherein:

• the fixation element comprises a fixation element body defining a ring-shaped through hole and having a proximal surface and a distal surface,
• the fixation element comprises thermoplastic material, and
• a plurality of protrusions protrude from the distal surface and being spaced from one another, wherein
• the fixation element comprises a structure designed and arranged to promote local compression of the item when forced into the item,
• wherein the structure is provided by a shape of barbs arranged at the distal end of the protrusions, wherein the barbs each comprise at least two pointed ends with a V-shaped, a U-shaped or a W-shaped indentation therebetween,
• such that the fixation element is adapted to be bonded to the item at bonding locations comprising bonding points that are separate from each other.