Patent ID: 6827535
Filing Date: 2004-12-07
Classification: F16B

Abstract:
A dowel bolt comprises an axially extending bolt (1) having a leading end facing in a setting direction (S) and a trailing end facing opposite to the setting direction, an outer thread (2) extending from the trailing end in the setting direction (S), an expansion head (3) on said bolt at the leading end and extending toward the trailing end, said expansion head (3) having an axially extending expansion section (3a) expanding in the setting direction (S), an axially extending expansion sleeve (4) encircling said expansion head (3) and expansion section (3a), said trailing end of said bolt (1) having a trailing end face (15) extending transversely of the setting direction (S) and having at least one recess (16) therein extending inwardly in the setting direction and having a depth (t1) in the setting direction, said recess (16) has a radially outer approximately triangular cross section part extending transversely of the setting direction (S), said recess radially inwardly of said triangular cross section part has a rectangular shaped part (18) extending axially in the setting direction (S) from said tailing end face (15) and said recess (16, 18) is open at the trailing end face (15) and at a circumferentially extending external periphery of said bolt (1) adjacent said trailing end face (15).