Hilitchi 420pcs M2 3 4 304 Stainless Steel Hex Socket Head Cap Screws Nuts Assortment Kit with Box (304 Stainless Steel) High Quality Stainless Steel Hex Socket Head Cap Screws Nuts Kit. Different Size of M2 M3 M4 Package Quantity: 420pcs, Material: 304 Stainless Steel. With Plastic Box.