1225pcs M2 M3 M4 M5 Hexagon Socket Screws, Bolts, Nuts, and Washers Assortment K
Size M2, M3, M4, M5. M4 8 mm - 20 pieces. M4 12 mm - 20 pieces. M4 16 mm - 20 pieces. M4 20 mm - 20 pieces. Avoid losing or misplacing screws with this efficient system and achieve accurate installations with the provided nuts and washers.