As a pair of closely cooperating fasteners, болты и гайки are both threaded fasteners, but their functional positioning is completely different. Are you unable to distinguish fasteners when sourcing them? Next, I will tell you the difference between bolts and nuts, as well as their characteristics, to help you choose the materials you need more easily.
Different structures
The nut is a small accessory with a hollow cylindrical or polygonal shape. The inner wall is processed with internal threads. The thread specifications must be accurately matched with the external threads of the bolt (such as the pitch and profile angle). Snap tightly as they are tightened to form a stable structure.
Bolts are generally larger than nuts and consist of a head and a cylindrical rod. The surface of the screw is processed with external threads, and the connection between the head and the screw usually has transition fillets to enhance fatigue resistance.
Different Types Of Nuts And Bolts
Types Of Nuts
The main types of nuts include general-purpose external hexagonal nuts; Extended spring nuts, as well as Гайки соединительные; Стопорные гайки, гайки с прорезями, и K-nuts designed to prevent loosening; and dome Nuts with closed ends in the shape of acorns. There is no need for гайки фланцевые used with washers. In addition, there are some special-shaped products such as T-channel nuts, square drive nuts, глазные орехи, барашковые гайки, sleeve nuts, clip nuts, Counter Nuts, и thread inset nuts suitable for wooden structures. In terms of installation methods, there are also diverse options, such as заклепочные гайки, self-clinching nuts, гайки для сварки, Break Away nuts, etc. These different types of nuts meet the needs of various complex working conditions.
Types of Bolts
Among many types of bolts, the most widely used ones are болты с шестигранной головкой, болты с фланцевой головкой, и шпильки болты. At the same time, there are specially designed styles such as болты с защелкой, hammer bolts, и рым-болты. To meet the special requirements of building structures, дюбельные болты, болты-переключатели, molly bolts, болты подвески, и болты для крыши have become indispensable special components. In addition, bolts with outstanding functionality, such as болты с кареткой, Track bolts, болты лифта, и allen connector bolts, are also popular, while featured products such as torsional shear bolts, заклепочные болты, banjo bolts, и Болты крепления ребра also occupy an important market position.
The Difference Between Threads
Nuts are generally designed with a full thread, while bolts are divided into partial thread and full thread. Moreover, both cover various types such as coarse threads, fine threads, and trapezoidal threads. When you choose, be sure to ensure that the thread types of bolts and nuts match each other. Do not screw coarse threaded bolts into fine threaded nuts; otherwise, it will easily lead to unnecessary losses.
Different Methods Of Use
In conventional applications, nuts often need to be used in conjunction with bolts, threaded rods, and washers; However, there are also some special types of bolts that can be installed without the need for nuts. Such as hexagonal tension bolts and hanger bolts, which can be fixed directly to the wood without additional nuts. In addition, the Toggle bolt and the molly bolt do not need to purchase a separate nut, because the tail comes with components that have the same functions as the nut.
Difference in bolt and nut weight
The nut has the characteristics of being lightweight, and its interior is hollow to allow the screw to pass through; At the same time, its height is relatively low. The mass of the bolt is proportional to the length of the screw. Because its main body is made of solid metal, the longer the length, the greater the overall weight. Based on the above structural differences, in practical use, the cost of nuts is usually lower than that of bolts.
Краткое содержание
Bolts and nuts are used as fasteners that cooperate and play a vital role in many fields. Simply put, bolts are usually longer in length and have external threads, while the relatively small, lightweight ones with internal threads are nuts.
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