High quality: It is made of high quality 12.9 grade alloy steel, and the surface is treated with black oxide. They have excellent corrosion resistance, firmness, wear resistance and low temperature resistance.
This kit can be widely used in all kinds of precision machinery, classified instruments, instruments, electronic products, household appliances, communication products, locks, lamps, lights, toys, etc.
Packing Quantity: 990pcs, Packed in A Rugged Convenient Re-sealable Plastic Storage Case.
Package Included: M2 M3 M4 Hex Socket Head Cap Screws Nuts Flat Washers Assortment Set
Whenever you need us, please contact us by email or Q&A. We will provide you with professional services and reply to you as soon as possible. If you are not satisfied with the product, you can get a full refund, and you can buy it with confidence.