Ajoyib 330 Pcs.Heat Inserts Brass Threaded Insert Nuts M2 M3 M4 M5 Female Thread Product Details Product Name: Embedment Nut Material: Brass Size: M2*4*3.5 x 30Pcs M2*6*3.5 x 30Pcs M2*8*3.5 x 30Pcs M2*10*3.5 x 20Pcs M3*4*5 x 30Pcs M3*6*5 x 30Pcs M3*8*5 x 20Pcs M3*10*5 x 20Pcs M4*4*6 x 30Pcs M4*6*6 x 20Pcs M4*8*6 x 20Pcs M4*10*6 x 15Pcs M5*6*7 x 15Pcs M5*8*7 x 10Pcs M5*10*7 x 10Pcs ?Size list?M2*4*3.5 ? 30Pcs, M2*6*3.5 ? 30Pcs, M2*8*3.5 ? 30Pcs, M2*10*3.5 ? 20Pcs, M3*4*5 ? 30Pcs, M3*6*5 ? 30Pcs, M3*8*5 ? 20Pcs, M3*10*5 ? 20Pcs, M4*4*6 ? 30Pcs, M4*6*6 ? 20Pcs, M4*8*6 ? 20Pcs, M4*10*6 ? 15Pcs, M5*6*7 ? 15Pcs, M5*8*7 ? 10Pcs, M5*10*7 ? 10Pcs. ?High quality material?Our products are made of high-quality brass, which is more beautiful and durable than iron materials. ?Assortment boxed?This product is classified and packaged in high-quality PP boxes, which is easy to store and classify. ?How to use?Can be installed by heating in tapered hole, or molded during injection. Can be widely used for plastic parts, especially 3d printed parts. ?Tips?Please feel free to contact us about any issue, We will provide technical support and respond within 24 hours. 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.