How many types of nails are there? Detailed answer

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How many types of nails are there? Detailed answer

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How many types of nails are there?

Typically, nails are used to fasten pieces of wood together or to nail other materials to wood. Nails are hammered into the right place with a hammer and held in the tree by friction forces. Some nails are roughened for better grip. Most nails are machine-made from stiff steel wire. Such machines can produce hundreds of nails per minute. First, the machine cuts the wire into pieces of the desired length. Then she flattens one end of the piece, giving it the shape of a hat. And finally, sharpens the other end.

Some types of nails, called faceted nails, are stamped or cut from sheet metal. Faceted nails have a quadrangular cross-sectional shape, not a round one. There are a huge number of types of nails, as they are all used for different purposes. Universal nails used for a wide variety of types of work are called ordinary nails. Carpenter's nails used to make furniture have very small heads so that they are not noticeable.

Roofing nails, on the other hand, have very large heads. They are used to nail shingles and roofing sheets to the roof. Large caps hold thin material well and protect it from tearing at the attachment point. Some nails have two heads, one above the other. The nail is hammered to the first cap. The top remains on the surface so that the nail can be easily pulled out. Double-head nails are used when nailing scaffolding, scaffolding and other temporary structures.

Most nails are made from steel. And the nails used for driving into cement or masonry are made of special hardened steel. Some nails, such as roofing nails, are galvanized, that is, covered with a layer of zinc so that they do not rust. Nails used in the construction of ships must be stainless. They are usually made of brass or bronze. Nails longer than 15 centimeters are called spikes.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

What kind of memory can metal alloys have?

Some metal alloys, such as nitinol (55% nickel and 45% titanium), have a shape memory effect. It lies in the fact that a deformed product made of such a material, when heated to a certain temperature, returns to its original shape. This is due to the fact that these alloys have a special internal structure called martensite, which has the property of thermoelasticity. In the deformed parts of the structure, internal stresses arise, which tend to return the structure to its original state. Shape memory materials are widely used in manufacturing, for example, for connecting sleeves that shrink at very low temperatures and straighten at room temperature, forming a connection that is much more reliable than welding.

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