Metric M2 M2.5 M3 M4 M5 Nylon Phillips Pan Head Screws Nut Washer, Black Product Details Package include: M2 M2.5 M3 M4 M5 Black Nylon Phillips Pan Head Screws Hex Nut Flat Washer Assortment Kit total 510 pieces. Come with the plastic box: Packing contents: High Quality 510PCS Metric M2 M2.5 M3 M4 M5 Black PA66 Nylon Phillips Pan Head Screws Hex Nut Flat Washer Assortment Kit Thread Diameter: M2/(2mm) with Thread pitch: 0.4mm;Screw thread: M2.5/(2.5mm) with Thread pitch: 0.45mm;Screw thread: M3/(3mm) with Thread pitch: 0.5mm;Thread Diameter:M4/(4mm)with Thread pitch: 0.7mm;Thread Diameter:M5/(5mm)with Thread pitch: 0.8mm The assortment contains:M2x5mm(20PCS),M2x8mm(20PCS),M2 Hex Nut (40PCS),M2 Flat Washer(40PCS); M2.5x6mm(20PCS),M2.5x10mm(20PCS),M2.5 Hex Nut (40PCS),M2.5 Flat Washer(40PCS);M3x6mm(20PCS),M3x10mm(20PCS),M3 Hex Nut (40PCS),M3 Flat Washer(40PCS);M4x8mm(15PCS),M4x10mm(15PCS),M4 Hex Nut (30PCS),M4 Flat Washer(30PCS); M5x10mm(10PCS),M5x20mm(10PCS),M5 Hex Nut (20PCS),M5 Flat Washer(20PCS);Total 510 pieces All products are made of nylon, Strong,anticorrosive; RoHS compliant Type specification complete, the quality is reliable,Easy to install 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.