1000Pcs M3 Hex Socket Head Cap Screws Bolts Nuts & Washer Assortment Kit(6-30mm)
This 1000-piece M3 screw kit includes 8 sizes (M3×6 to 30mm) with nuts and washers. Made from 12.9 grade alloy steel with black zinc plating for strength and corrosion resistance. Perfect for 3D printers, electronics, RC models, and DIY projects.