Product Name: Knurled NutWeight: 14gFeatured with heat resistance.Used on injection moulding for tightly fixing.No need to counterbore or countersink the boss gap because the insert has guide pilot.colour: Brass colorMaterial: brasssize: Thread Size: M3 / 0.12 inch; Pitch: 0.5mm; Outter Diameter: 4mm / 0.17 inchLength: 3mm / 0.12 inchPackage Contents: one hundred x (+/-2%) x knurled nuts; Only the above equipment content, different products will not be included.Note: Light capturing and diverse displays could cause the color of the object within the photo a bit diversified from the real thing. The measurement allowed error is +/- 1-3cm.