High Quality MaterialThis stainless steel deck screw set is made of high quality 304 stainless steel, high hardness, not easy to deform, eco-friendly, wear and corrosion resistant and durable for long time use . Various sizes This stainless steel hardware contains 10 different sets of screws, totaling 200 pieces: M3 x 0.5 x 3mm, M3 x 0.5 x 4mm, M3 x 0.5 x6 mm, M4 x 0.7 x 4mm, M4 x 0.7 x 6mm, M5 x 0.8 x 5mm, M5 x 0.8 x 8mm, M6 x 1 x 6mm, M6 x 1 x 10 mm, M8 x 1.25 x 8mm. Different sizes can better meet your needs. Easy to useAll machine screws are in a storage box that is easy to carry and use. The size and number of binding screws are in the storage box so that you can find the right size quickly and easily. Easy to install The stainless steel wood deck screw is easy to use even for the beginners. With the hexagonal groove, the screws and bolts are not easy to slip off, it is easier to install and saves time. Widely Used The flat head screw plate is suitable for precision instruments, meters, electronic products, communication products, locks, lamps, lighting, etc. shops, garages.