Keadic 185 Pieces Metric Black Zinc Plated Nylon Insert Lock Nuts Assortment Kit for Matching Screws or Bolts - Sizes Include：M3 M4 M5 M6 M8 M10 M12

QULITY MATERIAL: Our products are made of zinc plated material, which have great corrosion resistance and high hardness. Non-toxic & pollution-free. RESONABLE DESIGN: The flange faces are neatly arranged, which are smooth and burr-free. Besides, the screw mouth is deep and even enough in case of sliding.There are nylon insert the nuts fastening the screws and bolts effectively. COMPLETE SIZE: Sizes include M3 M4 M5 M6 M8 M10 M12 for your multi-purpose use. The thread pitch of these lock nuts respectively are M3-0.5mm，M4-0.7mm，M5-0.8mm，M6-1mm, M8-1.25mm，M10-1.5mm，M12-1.75mm. Amostly covering all of your demands. GREAT PACKAGING: Totally complete 185Pcs nuts are packed in a transparent plastic box, which makes it convenient for storage and access. WARM TIPS: We are confident with our products, and I promise that you won’t be regret if you got these nice nuts. If you have any question about our product, please feel free to contact me, and I’ll reply you within 12 hours.