Centering sleeve and method for fastening

A sleeve (20) for centering fasteners during assembly of components, the sleeve comprising:

• a sleeve body (23) formed of a plurality of sleeve elements (21, 22) which are grouped around a central center axis (A) and spaced apart from each other by gaps running in a sleeve longitudinal direction;
• and
• a separable connection bracket (25) that connects at least first (21) and second (22) ones of the sleeve elements to each other at an axial longitudinal end of the sleeve body (23);
• wherein the connection bracket (25) has a predetermined breaking point (31, 32) each at the transition to the first and second sleeve element (21, 22).

A method for fastening a facade element to a substructure of a building envelope, comprising the following steps:

• a) inserting a sleeve (20), including a sleeve body (23) formed of a plurality of sleeve elements (21, 22) which are grouped around a central center axis (A) and spaced apart from each other by gaps running in a sleeve longitudinal direction and a separable connection bracket (25) that connects at least first (21) and second (22) ones of the sleeve elements to each other at an axial longitudinal end of the sleeve body (23), in a hole of said facade element, with flange-shaped overhangs (26, 27) of the first and the second sleeve elements resting on a surface of the facade element,
• b) breaking off the connection bracket (25) along predetermined breaking points (31, 32) to the sleeve elements (21, 22),
• c) inserting a fastener in a longitudinal opening of the sleeve,
• d) driving the fastener,
• e) countersinking the fastener in the substructure, wherein the sleeve (20) achieves a centering in the hole of the facade element and driver elements (28, 29) of the first and second sleeve elements lock in the thread grooves of the fastener,
• f) ejecting the sleeve elements (21, 22) from the hole of the facade element by driving the fastener, and
• g) completing the fastening wherein no remainder of the sleeve (20) remains in a completed fastener-facade—element substructure combination.