F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 25/02 (2006.01) E21D 20/00 (2006.01) E21D 21/00 (2006.01) F16B 33/02 (2006.01)
Patent
CA 2697581
A method is described for anchoring a fastening element (11) in a mineral component (1), in which a bore hole (2) is provided in the component (1) using a drill bit having a nominal drill bit diameter, and a fastening element (11) is then screwed into the provided bore hole (2). The fastening element (11) has a shank (12) which is provided with rotary engagement device (16) for a setting tool, and has a core diameter (K) and cutting edges (21) on a first end region. The fastening element has a self-tapping thread (17) in which the difference between the outer diameter of the thread (17) and the core diameter (K) of the shank (12) corresponds to 0.05 to 0.7 times the pitch of the thread (17). A drill bit is used which has a nominal drill bit diameter corresponding to 0.95 to 1.10 tiines the core diameter (K) of the shank (12). Also described is a fastening element (11) for anchoring in a mineral component (1).
Bianchi Pietro
Gstach Peter
Oberndorfer Georg
Rosenkranz Falk
Sander Bernhard
Gierczak Eugene J. A.
Hilti - Aktiengesellschaft
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