Qualfast: M5 Steel Countersunk 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. Steel, CSK Head, Splined Body The splines on the body bite into the parent material on installation, creating an improved torque resistance compared with standard round bodied rivet nuts. The extra wide countersunk head provides excellent strength whilst leaving the nut flush with the material face. MPN: 5036140059481 EAN: 5036140059481 M5 Steel Countersunk Head Knurled Rivet Nut (Box-500) Attributes: Box Quantity: 500 Dimensions D: 6.9mm Dimensions H: 10.0mm Dimensions L: 13.0mm Dimensions P: 1.5mm Hole Diameter: 7.0 Material: Steel Range: 2.5-4.0 Supplied In: Pack of 500 Surface Treatment: Plain Thread: Metric Thread Size: M5