Metric Bolt Assortment M2 M2.5 M3 M4 12.9 Alloy Steel Hex, Ajuer 1305 Pcs.. Product Features High quality ?Screw is 12.9 grade Black Zinc Plating On carbon steel. They have resistance to rust and excellent resistance to oxidation in a bad environment such as high temperature, cold weather and high humidity areas that can guarantee long time Various screw sizes: There are 24 options to meet different needs. It is a very important hand tool for the family. and a single bag and partition board can prevent hardware fittings from being mixed. The nuts and washers are made of 304 stainless steel with black zinc. Has better anti-oxidation and anti-corrosion effects. This screw sleeve box is widely used inelectronics, electrical appliances, chemicals, water, machinery ?appliances, furniture?proportional remote control vehicles, tracks,trucks?baby carriages and many other areas Packaging content?M2*4 M2*6 M2*10 M2*14 M2.5*6 M2.5*8 M2.5*10 M2.5*12 M3*6 M3*8 M3*10 M3*12 M4*10 M4*12 M4*16 M4*20 screws,M2 M2.5 M3 M4nuts,washers and the corresponding hexagon wrench.Not suitable for kid under 5 years due to small parts 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!