20pcs Flat Head Metric Steel M5 Blind Insert Rivet Nut Product Name: Rivet Nut; Material: Carbon Steel, Zinc Thread Diameter: 5mm; Total Size: 13mm Grip Range: 0.5-3.0mm; Body Diameter: 7mm Application hole size: 7mm; Weight: 36g Package Content: 20 x Rivet Nut; Color: M5x13L