1500Pcs Screws Assortment , M2 M3 M4 M5 10.9 Grade Alloy Steel Hex Flat Head Cap High Quality Materials: Screws Nuts Set is Made of high quality 10.9 grade alloy steel. Which features is strength and offers good corrosion resistance in bad environment like high temperature, Cold weather and high humidity areas. Excellent rust resistance and toughness can ensure long-term use. Perfect Combination Set: The set has 1500 pieces including 4 of the most common sizes in life: M2 M3 M4 M5. Hex Flat Head Cap Bolts Nuts Washers. According with standardized metric system. Screws assortment is equipped with a nut and washer, and each box comes with eight free Allen wrenches, So you only need to buy one set to meet your various needs! Exquisite Storage Box: All of Bolts and Nuts are packed in a durable and sturdy Box to efficiently bear the weight of the whole package. The box is clearly labelled so that you can quickly identify the size you need by the label. In order to avoid the bolts being scattered or lost during use, we specially package for each different type of bolts for your convenience and storage. Not only give you the best product, but also the best storage system for them. Wide Range of Uses: M2 M3 M4 M5 Hex Flat Head Bolts Washers and Nuts Assortment Kit Serves a wide range of use. The set is perfect to replace broken and missing bolts. Screws Nuts Set is commonly used for home, Industrial, Car and boat accessories, Electronics and DIY projects, etc. The kit has lots of different sizes, Which can meet the maximum of requirement for you. 100% Satisfaction Guarantee: We have a 1-year quality problems package replacement, lifetime warranty. If you have any question or suggestion, Please feel free to contact us anytime. We will do our best to provide you a pleasure shopping experience.