Thread Size: M8 x 1.25mm; Drill gap size: 11mm / 0.43 inch; Fastener Type: HollowMechanical inner thread, materials, uniform wall thickness, floor treatment, corrosion resistance, and excessive strength.Drill a hole in keeping with the dimensions of the rivet nut installation hole, insert the rivet nut, and tighten the locking nut with the rivet tool.Widely used in sheet metal, household skinny iron cabinet, roof, package casing, etc.Widely used in metal sheets or non-metal plastic, wood, and other sheets, rivet nuts would be firmly constant at the sheet to provide tight thread locking force.Colour:Color zincMaterial:MetalPackage Contents:25 * rivet nutsOnly the above equipment content, different merchandise should not included.Note: Light mirrored image and different exhibits could cause the color of the object in the picture somewhat varied from the real thing. The size allowed error is +/- 1-3cm.