uxcell 50 Pcs M8x18mm Stainless Steel Open End Serrated Large Flange Rivet Nut Nutserts Thread Size: (D) M8/ 0.3"; Product Name: Rivet Nut; Material: 304 Stainless Steel Weight: 291g; Package Content: 50(+/-2%) x Rivet Nuts Main Color: Silver Tone; Flange Size (dk*k): 15 x 1.6mm/ 0.6" x 0.063" (D*Thickness) Thread Pitch: 1.25mm; Total Length (L): 18mm/ 0.7" Body Diameter (d): 11mm/ 0.43"; Application Hole Size (d0): 9.5mm/ 0.37"