Material Carbon_steel Fixing Type Flange Thread Size M4 Item Weight �2.4 ounces Package dimensions �4 x 3 x 0.5 inches Exterior finish zinc, carbon steel, steel, metal Metal type alloy steel, carbon steel About this item Knurled zinc-plated steel rivet nut Thread pitch: M4x0.7 Outer diameter: 5.9 mm, length: 11mm Drill hole size: 6mm / 7 /32", sheet metal grip range: 26 - 16ga Head diameter: 9mm , head thickness: 0.9 mm