Top Quality Steel Rivet Nut Rivnut Insert Nutsert - Open end M4 X 0.7 m/m Large Flange, Knurled Body Material: Steel Finish: CR3 Zinc Body Diameter: 6.73" Application hole size: 6.80" Grip Range 0.5” - 2.0” Package: 25 pcs in a bag * PICTURE FOR REFERENCE ONLY.