1,The fastener kit includes hex single double pass standoffs, screws and nuts, with sufficient quantity and variety. 2,These fasteners are made of nylon material, strong and corrosion resistant, suitable for various maintenance situations. 3,M3 nylon screw set has the characteristics of insulation, non magnetic, heat insulation, corrosion resistance, etc. 4,These screws and nuts are packed in a separate transparent box, easy to store and distinguish the size. 5,Widely used in various accurate machinery industries, electronic products, household appliances, toys, etc. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.