Features 1、304 Stainless Steel: Made of 304 stainless steel, has good corrosion resistance, non rust. Well made screws and nuts fit perfectly and provide excellent results. The thread is also glazed, pointed and free of burrs. The compact thread is not easy to deform and slip when rolling 2、Grid Organizer: All 580 screws, nuts and washers are packed in a strong transparent plastic storage box with an integrated partition and a clear label on the lid for easy carrying and disassembly. Adjust the size and shape of each grid at your own will to make storage easier 3、Hardware Kit: The stainless steel screw set contains 580Pcs of hardware: 180Pcs of screws, 200Pcs of nuts and 180Pcs of washers, 4 wrenches and 1 tweezers. In this case, everything is in order and decent, an excellent substitute for industrial and building fixtures 4、A Variety of Screw Sizes: Includes a variety of sizes, with matching nuts and washers, which can meet most of your requirements and meet the needs of your home life 5、Wide Applications: An ideal tool for home and workplace, professionals, hobbyists, craftsmen, maintenance workers, woodworking, construction, furniture, 3D printing projects, communication equipment, ship assembly, etc. Specification Item Type: Screws Nuts Washers Kit Material: 304 Stainless Steel Execution Standard: DIN912 Screw Model: M2x8mm, M2x12mm, M2x16mm, M2x20mm M3x8mm, M3x12mm, M3x16mm, M3x20mm M4x8mm, M4x12mm, M4x16mm, M4x20mm M5x8mm, M5x12mm, M5x16mm, M5x20mm Cylindrical Head Hex Socket Screw Model M2 M3 M4 M5 Thread Diameter(Approx.) 2mm / 0.08in 3mm / 0.12in 4mm / 0.16in 5mm / 0.20in Pitch(Approx.) 0.4mm / 0.016in 0.5mm / 0.02in 0.7mm / 0.03in 0.8mm / 0.031in Head Diameter(Approx.) 3.8mm / 0.15in 5.5mm / 0.22in 7mm / 0.27in 8.5mm / 0.33in Head Height(Approx.) 2mm / 0.08in 3mm / 0.12in 4mm / 0.16in 5mm / 0.20in Wrench Size(Approx.) 1.5mm / 0.06in 2.5mm / 0.10in 3mm / 0.12in 4mm / 0.16in Washer Model Thickness(Approx.) Inner Diameter(Approx.) Outer Diameter(Approx.) M2 0.3mm / 0.01in 2.2mm / 0.09in 5mm / 0.20in M3 0.5mm / 0.02in 3.2mm / 0.12in 7mm / 0.27in M4 0.8mm / 0.031in 4.3mm / 0.17in 9mm / 0.35in M5 1mm / 0.04in 5.3mm / 0.21in 10mm / 0.40in Hex Full Nut Model Thread Diameter(Approx.) Pitch(Approx.) Nut Height(Approx.) Wrench Diameter(Approx.) M2 2mm / 0.08in 0.4mm / 0.016in 1.6mm / 0.06in 4mm / 0.16in M3 3mm / 0.12in 0.5mm / 0.02in 2.4mm / 0.09in 5.5mm / 0.22in M4 4mm / 0.16in 0.7mm / 0.03in 3.2mm / 0.12in 7mm / 0.27in M5 5mm / 0.20in 0.8mm / 0.031in 4mm / 0.16in 8mm / 0.31in Package List 1 x Tweezers 4 x Hex Wrench 10 x M2x8mm Screw 10 x M2x12mm Screw 10 x M2x16mm Screw 10 x M2x20mm Screw 15 x M3x8mm Screw 15 x M3x12mm Screw 15 x M3x16mm Screw 15 x M3x20mm Screw 10 x M4x8mm Screw 10 x M4x12mm Screw 10 x M4x16mm Screw 10 x M4x20mm Screw 10 x M5x8mm Screw 10 x M5x12mm Screw 10 x M5x16mm Screw 10 x M5x20mm Screw 45 x M2 Washer 65 x M3 Washer 45 x M4 Washer 45 x M5 Washer 45 x M2 Nut 65 x M3 Nut 45 x M4 Nut 45 x M5 Nut