FLANGED HEAD ALUMINIUM RIVNUTS Aluminium flanged head open end rivet nutIdeal for installing a strong female thread in sheet materials or box sectionLarge flange reinforces the hole in thin materials and can be used as a spacerGrooved body expands radially when setting to grip the substrateProvides extra resistance to turning particularly in thin and soft materialsFlange head increases pull-out resistanceSuitable for use in drilled or punched holesSizes shown are thread size x original lengthFor best results, hole diameter should be 0.1mm larger than rivet nut bodyGrip range = total material thickness