Patent ID: 7052224

Claim:
A fastener assembly for securing a first molded component to a second molded component, comprising: a stud that is a molded part of the first component and extends outward from the first component, wherein the stud is substantially smooth; a cylindrical wall that is a molded part of the second component; a longitudinal bore defined by the cylindrical wall; and at least one flute extending radially from the cylindrical wall into the bore and longitudinally along the cylindrical wall in a helical manner, wherein the flute includes a crest formed by the intersection of two surfaces, at least one of which is curved, the angle of intersection being 90 degrees or less, whereby the flute secures the stud in the bore of the cylindrical wall upon insertion of the stud into the bore through an open end of said bore, wherein the intersection of the two surfaces define a bisector line which is inclined in a direction towards said open end of said bore.