ITEM NAME:100Pcs Rivet Nut Mixed Zinc Steel Rivnut Insert Nutsert Threaded Case Set JXY Descriptio n Specification: Brand new Material: Carbon Steel, Zinc Plated Size: M4 M5 M6 M8 Quantity: M4 (25pcs); M5 (25pcs); M6 (25pcs); M8 (225pcs) Feature: Rivet nuts can be installed in many different kinds of material including steel, plastic and fiberglass. Strong and corrosion resistant. Not easy to rust. Easy to use. Durable and practical. Package included: 100pcs x Rivet Nuts Note: Please allow a little size errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. We offer you what you need! 100 x M4 M5 M6 M8 Flat Head Metric Threaded Blind Rivet Nut Insert Rivnut Nutser.100pcs x Rivet Nuts. Rivet nuts can be installed in many different kinds of material including steel, plastic and fiberglass. Material: Carbon Steel, Zinc Plated. We'd like to settle any problem in a friendly manner.