1520Pcs Nuts And Bolts Assortment Kit Metric Screws With Washers Lock Washers M5 Product Details SCREWS ASSORTMENT KIT: Hex socket head cap fully threaded with 12 common sizes, including M3, M4, and M5, with lengths of 8mm, 12mm, 16mm, and 20mm respectively. Also includes flat washers for screws, lock washers, and nuts. REFUSE TO RUST: 1520Pcs set is constructed entirely of 304 stainless steel, Undergoes acid pickling and passivation treatment, Clean and non-greasy, Resistant to corrosion in wind and rain. WELL ORGANIZED: Sturdy plastic box with dual snap closures, Resistant to pressure and impact. Divided storage for easy identification, Suitable for repeated use as a toolbox. ICING ON THE CAKE: Includes matching Allen wrench and tweezers, Labeled for easy identification. BE PREPARED: Ideal for DIY projects, 3D printing, Mechanical screw, RC model screw replacement, Home decoration, Cabinet drawers, Industrial electronic maintenance, and small outdoor construction. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.