nail (engineering)

In engineering, woodworking and construction, a nail is a pin-shaped, sharp object of hard metal, typically steel, used as a fastener. Nails for specialised purposes may also be made of stainless steel, brass or aluminium.Nails are typically driven into the workpiece by a hammer or by a nail gun driven by compressed air or a small explosive charge. A nail holds materials together by friction in the vertical direction and shear strength in lateral directions. The point of the nail is also sometimes bent over or clinched to prevent it from pulling out.
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