Patent ID: 7955035

Claim:
A rivet for connecting at least two parts, each of said parts having a hole through which at least a portion of said rivet extends, said rivet comprising: a sleeve part having a rivet head with an axially extending cavity and a shank adjoining the rivet head; a rivet mandrel having a substantially cylindrical base body and a rivet mandrel head, said rivet mandrel head being enlarged with respect to a diameter of said base body, the base body of said rivet mandrel configured and arranged to penetrate the sleeve part of the rivet; said rivet mandrel further comprising a plurality of ribs extending axially of the base body and projecting over the substantially cylindrical base body in a radial direction, said ribs being embodied with wedge surfaces directed towards the rivet head, said ribs being structured and arranged to produce a widening of the shank when the rivet mandrel is drawn in, with material of the shank having flowed in and being situated between the ribs; after placement of the rivet, a length of the ribs creating an expanded area of the shank along at least 40% of a length of the base body between the rivet mandrel head and a predetermined breaking point of the base body.