28 Jul 50pcs M3 x 0.5mm Hex Lock Nuts Carbon Steel Nylon Insert Self-Lock Nuts Black
Descriptions:Made of carbon steel, zinc plating finish, high hardness and corrosion resistance. Using nylon inserts, these lock nuts greatly reduce loosening under vibration and torque.Used in conjunction with bolts, washers, or screws as fasteners when mechanically joining materials together.Can be widely used in the machinery...