【High Quality Materials】-- Our Hex Flat Head Cap Bolts Nuts Washers Assortment Kit are made of 100% pure 10.9-grade alloy steel for superior oxidation resistance for extended use. They are strong enough to provide good corrosion resistance in harsh environments such as high temperatures, cold weather and high humidity area to ensure your safety.
【Perfect Combination Set】---- Our Head Screws Nuts and Bolts and Flat Washers Set has 1615 pieces, including 5 most common sizes in life: M2 M3 M4 M5 .Each standard metric size screw comes with a nut, washer, and 4 hexagonal wrenches, and a pair of tweezers in each box, so you only need to buy one set to satisfy your various needs!
【High precision & strict standards】----Our kits produced strictly Accord with DIN7991 Standardized metric system ,the average error less than 0.01mm ,Easy to use and install
【Widely Application】--- Machine Screws are suitable for all kinds of precision machinery,classified instruments,meters,electronic products,home appliances, communication products, locks, lamps, toy,drone construction, 3D printers, motorcycles, desks, remote control projects and DIY projects, etc. Ideal for professionals, homeowners, repairmen and other DIYERS.
【Exquisite Storage Box】--- In order for you to receive the perfect product, we have reinforced the inner and outer packaging of the product box. The box is clearly labeled so that you can quickly identify the size you need by the label, making it easy to store and carry.
【GOOD SERVICE】--- We are committed to providing customers with high-quality products. If within 30 days you are not 100% satisfied with the product, such as buying the wrong size, please feel free to contact us, we will within 24 hours provide you with a satisfactory solution.