uxcell 20Pcs Steel Rivet Nut Flat Head Insert Nutsert 1/4-20 Product Name: Rivet Nut; Material: Carbon Steel, Zinc; Thread Diameter: 5.35mm / 1/5 inch Thread Pitch: 1.6mm / 1/16 inch; Grip Range: 0.7mm-4mm / 0.027"-0.165" Body Diameter: 9mm / 0.35"; Total Length: 15mm / 0.590" Application hole size: 10mm / 0.391"; Weight: 71g Package Content: 20 x Rivet Nut; Color: 1/4-20