Our daily tools are needed to reinforce a variety of small parts, these are essential for the composition of our various machines, but due to the diversity of various parts and the name of the various components is not a lot of difference, we are often in the use of the time and need to be used together, so the concept of these is not very clear, and even personnel confusion, and now I come to give We introduce the difference between screws, bolts and nuts to help you distinguish them.
Difference between screws, bolts and nuts
Bolts, nuts, screws, are fasteners. Bolts and nuts can be used together and screws can be used alone. The difference between a bolt and a stud is that a bolt has a polygon at one end that can be screwed, and a stud is simply a cylindrical piece with external threads applied to it.
Screw is an incorrect term, a generic term for parts with threads used by non-professionals, and is not used in the industry.
In the fastener industry, in fact, screws and bolts are not a strict distinction. However, within the industry there are two ways to distinguish between screws and bolts:
1, according to the wrenching structure to points. The so-called wrenching structure, that is, the screws / bolts used to put the wrench above the place, that is to say, in some systems, will be outside the wrenching structure of the externally threaded rod parts collectively referred to as bolts, and vice versa, will be inside the wrenching structure of the screws called screws. External wrench screw structure: hexagonal head bolts; internal wrench screw structure: hexagonal bolts, etc., this has a more obvious example is the Chinese national standard in the fasteners, for example, GB5782, GB5783 (a half-threaded, a full-threaded). Because they are all hexagonal structure, so, in the standard name, collectively called: bolt.
2, according to whether the product has a non-threaded rod features to distinguish. This is also used more widely a classification method, are generally distinguished between bolts and screws. That is: if the product in addition to the head in addition to all the rod is threaded, this part is called a screw. On the contrary, if, in addition to threads, also has the characteristics of light pole, etc., called the bolt.
3. Screw is a more general term.
The exact term should be bolts, screws, and screw caps.
Bolts and screws are long, round objects with equally spaced threads.
Bolts are flat cylindrical; screws have a pointed front like a nail.
Bolts must be used in conjunction with a screw cap or on an object that has been drilled with threads.
Screws are used on softer or thinner objects, and use their own threads to drill forward while rotating.
Bolts have shallow, non-sharp threads, while screws have sharp, deep threads, which are good for drilling into objects.
Most bolts and screws require one of the most common and simple tools - a screwdriver.
Above, I give you a detailed introduction to the difference between screws, bolts and nuts, for them to use a simple example of the introduction, for everyone to understand provides a better explanation, we must make these concepts clear in the use of the time, do not get mixed up, or else we use or purchase will buy the wrong, these parts can not be used well, I hope that the introduction can help you differentiate between the two. Small introduction can help you distinguish and understand the screws, bolts and nuts.
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