Patent ID: 8721242

Claim:
A blind rivet comprising: a deformable tubular segment and an outwardly expanded head, an interior surface of the tubular segment defining an elongated through-bore from the head to a distal end opposite the head; and at least four elongated cuts extending along a majority length of the tubular segment and ending inwardly of the head and of the distal end of the tubular segment; the tubular segment having a laterally bulged portion and spaced apart indentations, each indentation being positioned between two of the cuts and in communication with the bulged portion and each consecutive indentation forming one of a plurality of columns therebetween; and wherein each column includes at least one intermediate indentation proximate a longitudinal end of a depression for facilitating a bending of the column therethrough in order to encourage the columns to bend at their mid-points; wherein the tubular segment further includes at least one crimp indentation inwardly extending from said tubular segment substantially between the cuts and the distal end.