Blind fastener and drive nut assembly

A blind fastener assembly comprising:

• a screw having a plurality of external threads and a head positioned at an end of the screw;
• a sleeve having a deformable sleeve face positioned at the end of the screw adjacent the head;
• a nut having a plurality of internal threads, an enlarged nut head positioned at an end of the nut, and a driving recess positioned within the enlarged nut head, wherein an end opposite the nut head is positioned on the screw adjacent to the sleeve;
• and
• a drive nut having a smooth bore positioned on the screw adjacent the nut having an outer surface adapted for engagement by a driving tool, a plurality of protruding nibs extending from a first end of the drive nut for engaging the driving recess of the nut and at least one protrusion extending into the smooth bore from the outer surface of the drive nut for engaging the threads of the screw.

A method for assembling a fastener system comprising the steps of:

• threading a sleeve onto a screw;
• threading a nut having a plurality of internal threads and a head having a driving recess onto the screw adjacent the sleeve;
• positioning a drive nut having a smooth bore and a plurality of protruding nibs extending from a first end of the drive nut onto the nut so that the protruding nibs are aligned and matingly engaged into the driving recess of the nut;
• and
• deforming a side portion of the drive nut into the smooth bore to engage and retain the drive nut on the screw.