FASTEKS Filko® is a registered trademark for blind rivet nuts and exclusively available at Bossard and its affiliates. This efficient and economic fastening solution enables bolted joints even on thin components and hollow sections. The hollow-thread nut which is installed from only one side guarantees a high tear-out strength. FASTEKS Filko® blind rivet nuts offer a great variety of head shapes, threads, shanks, grip ranges and materials.


  • Can be installed from a single side – ‘blind application’
  • Can be used as a blind rivet or blind rivet nut
  • High pull-out strength as the result of pronounced rivet beading
  • Applicable on parts with treated surfaces
  • Great variety of shapes, sizes and materials
  • Installation by hand or with hydro-pneumatic tools

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