uxcell M10x20mm Open End Flat Head Knurled Body Blind Rivet Nut 100pcs Thread Size: M10/ 0.4"; Product Name: Rivet Nut Material: Metal, Zinc Plated; Weight: 813g Package Content: 100(+/-2%)pcs x Rivet Nut; Main Color: Bronze Tone Application Hole Size: 11mm/0.43"; Total Length: 20mm/ 0.8" Round Body Diameter: 13mm/0.51"; Flange Size: 16 x 1mm/0.63" x 0.04"(Dia*Thickness)