Now many residents are in fixed roof, are choosing corrugated nail, because the corrugated nail has a unique manufacturing process, in the instant noodles galvanized, improved corrosion resistance, and it can withstand year-round rain, snow, and other weather, in this way, the working of the corrugated nails, uh, should also raise a lot of impression scores in people's minds. If you choose another nail, it will rust, not only because it will shorten the life, but also because it may cause ugly stains on the roof. Many corrugated nails are threaded. These features help to grip, usually in roof material mounting, and help prevent nails from running out or becoming loose on the wood. The use of it to a large extent can be fixed we want to fixed things, especially some household woodwork is indispensable to its existence. In modern furniture, Butt joints (where the boards are simply butted together, face to face, side to side or side to side, with no self-tightening mechanism) are glued together or secured with corrugated nails. Dovetail joints are rarely separated; if they are, apply adhesive to the loose joint and hammer the joint together. Butt joints are treated differently. If you want to tighten a loose butt joint, try gluing the joint together and then tapping it to make it as tight as possible. The above is why we often see some roof corrugated nails, AH, I hope the Xiaobian has resolved your doubt