600 Pcs M3 M4 M5 Metric Screws Bolts and Nuts and Washers Assortment Kit, Button
Thread size: M3, M4, M5. Size: M3, M4, M5. The hex socket cap head design can be easily installed with a hexagonal wrench, and it is not easy to slip out. Hex nuts can make your installation more precise, fasten better, and carry larger loads.