Keadic 100 Pieces Black M12/M10/M8/M6/M5/M4/M3 Hex Lock Nuts Carbon Steel Nylon Insert Locknut Assortment Threaded Inserts Nut Set Assorted Locking

【High-Quality Material】 This kind of products are made of zinc plated material, which have great corrosion resistance and high hardness. Non-toxic, pollution-free and no deformation. 【7 Sizes】Total 150 pcs nylon nuts. Include 25 pcs M3 lock nuts, 25 pcs M4, 15 pcs M5, 15 pcs M6, 10 pcs M8, 5 pcs M10, 5 pcs M12 locknut, which is more fully equipped 【Unique Design】With a nylon insert, these lock nuts greatly reduce loosening under vibrations and torque after long-term use, and have a good fastening effect. 【Wide Application】The carbon steel nuts can be widely used in manual DIY production, robots, aerial aircraft, medical equipment, petrochemical industry, marine power facilities, architecture and other fields. 【Reliable After-Sale Services】 If you have any question about our product, please feel free to contact me, and I'll reply you within 12 hours. You can return it unconditionally within 90 days if you are not satisfied with our product. Of course, welcome to tell me your suggestions if you come across any problems during use