Metric Hex Socket Head Cap Screws Assortment Kit, M3 M4 M5 Metric Screws Product Features High quality: Our Metric M3 M4 M5 Screw Assortment Set is made of high-quality 12.9 grade Alloy Steel, black zinc plated, with high strength, corrosion resistance and oxidation resistance, so it can be used in harsh environments. Product Details: Our screws nuts and washers assortment set included: M3 screws (bolt length:8mm,12mm,16mm,20mm), M4 screws (bolt length: 12mm,16mm,20mm,30mm), and M5 screws (bolt length: 12mm,16mm,20mm,30mm), with matching nuts and flat washers totalling 840pcs, The complete range of sizes are enough to meet your various needs in life. Wide Application: This M3 M4 M5 screws bolts and nuts kit is suitable for 3D printers, electronics, furniture repair, mechanical maintenance, automotive, etc.! Durable storage box with clear label: Each size of the metric bolt assortment are packed in a different compartment of the sturdy and transparent plastic storage box . And the label is clear to recognize the size that you need. The screws bolts and nuts kit includes 3 high-quality adapted hex wrenches Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!