Patent ID: 8038376

Claim:
A connection element ( 1 ) having a thread ( 2 ) adapted to engage with a mating thread, comprising: a locking means ( 3 ) to generate a locking force that acts upon the mating thread, wherein said locking means ( 3 ) is formed by at least a first flank ( 6 ) of at least one locking section ( 11 ) of the thread ( 2 ), and a second flank ( 9 ) of the at least one locking section ( 11 ) of the thread ( 2 ), with each flank having a radially stepped raised flank face that is offset from an adjacent thread face of the thread of the locking section along one winding of the thread ( 2 ) and is substantially parallel to the adjacent thread face of the thread of the locking section, and with the first flank offset from the second flank in axially opposite directions and distributed alternatingly with respect to one another along the one winding of the thread ( 2 ) so that when the thread ( 2 ) engages with the mating thread, the locking force is generated on at least one of the flanks ( 6 , 9 ) of the locking section ( 11 ), and wherein two or more locking sections ( 11 ) are distributed along the one winding.