Qualfast: M4 Steel Large Head Knurled Rivet Nut (Box-500) All of our rivet nuts have a clear plating which is RoHS compliant - this is now the preferred finish across all industries as there is no chromium content as is the case with zinc and yellow finish. MPN: 5036140059436 EAN: 5036140059436 M4 Steel Large Head Knurled Rivet Nut (Box-500) Attributes: Box Quantity: 500 Dimensions D: 5.9mm Dimensions H: 9.0mm Dimensions L: 11.6mm Dimensions P: 0.8mm Hole Diameter: 6.0 Material: Steel Range: 0.3-2.5 Supplied In: Pack of 500 Surface Treatment: Plain Thread: Metric Thread Size: M4