702Pcs Metric M3 Screw Assortment, Hex Button Head Cap M3 Machine Screws Bolts ?M3 Hex Button Head Cap Screws?Head Style: Button head; Drive Type: Hex button; Exterior Finish: Black Oxide; Size: M3 screw assortment, different sizes can meet your different needs. Note: please make sure the size before you purchase. ?Complete Assortment? 702PCS of M3 Button Hex Head Cap Screws and nut set in various sizes (M3x4mm*30,M3x5mm*30,M3x6mm*30,M3x8mm*30,M3x10mm*20,M3x12mm*20,M3x14mm*20,M3x16mm*20,M3x18mm*15,M3x20mm*15,M3x25mm*15,M3x30mm*15,M3 flat washers*220,M3 nuts*220), with nuts and washers included for your convenience. ?High-Quality Material?Made of 12.9 grade alloy steel, these M3 screws nuts are built to last with higher hardness and great tensile strength. Plus, they're coated with anti-rust oil to withstand exposure to the elements. ?Convenient Storage Box?Our M3 bolts and nuts kit comes in a reinforced box with separate compartments and sturdy latches, making it easy to store and carry. Clear label sheets are pasted on both the inner and outer lids, so you can quickly find the sizes you need. ?Wide Applications?Our metric M3 screw kit is perfect for precision machinery, 3D printers, electronics, home appliances, toys, and more. Plus, with our 24-month warranty, you can buy with confidence.