Caja combinada de tornillos: 2000 tornillos de cabeza hueca con arandelas elásticas/planas, M2/M3/M4/M5

Precision machining: Precision cast threads with strictly controlled dimensional tolerances. Nickel-plated surface for excellent corrosion resistance. Elastic washers and swivels: Used in combination to improve the resistance to loosening at the joint. Suitable for vibration and shock environments. Complete range of sizes: Includes universal sizes of M3, M4, M5, and M6 screws. Meets the installation needs of various mechanical equipment and electronic products.