• Complete set of 440 pieces of M3 hex head screws and nuts • Made of high-quality stainless steel, offering strength and durability • Excellent resistance to corrosion, rust, and oxidation for prolonged use • Screws and bolts with deep and clear hex sockets and heads, making work easier and preventing slipping • Do not deform or slip easily during use • All items are stored in a sturdy and transparent plastic box for easy access and protection • Widely used in household appliances, office equipment, communications, boat assembly, and other DIY uses • Includes: 220 M3 nuts, 20 M3 x 6 mm screws, 20 M3 x 8 mm screws, 20 M3 x 10 mm screws, 20 M3 x 12 mm screws, 20 M3 x 16 mm screws, 20 M3 x 18 mm screws, 20 M3 x 20 mm screws, 20 M3 x 25 mm screws, 20 M3 x 30 mm screws, 20 M3 x 35 mm screws, 20 M3 x 40 mm screws, and 2 wrenches • Total of 440 pieces, ideal for multiple applications and projects