高強度螺栓屬于一種標準件，這種螺栓的強度比一般的螺栓強度高出很多，高強度螺栓全名叫做高強度螺栓連接副，這種螺栓一般常常用在鋼結構工程上面，專門是用來連接鋼結構鋼板的連接點。高強度螺栓又可以分為很多種類，一般的有扭剪型高強度螺栓和大六角高強度螺栓兩種大類,其中大六角是屬于普通螺栓的高強度級別，也就是一般螺栓的升級版，如果是扭剪型高強度螺栓就不同了，它是大六角的改進型版本。
High strength bolt belongs to a kind of standard parts. The strength of this kind of bolt is much higher than that of general bolt. The full name of high strength bolt is called high strength bolt connection pair. This kind of bolt is usually used in steel structure engineering, especially for connecting the connection point of steel plate in steel structure. High strength bolts can be divided into many types. There are two types of high-strength bolts: torsional shear high-strength bolts and large hexagon high-strength bolts. Among them, large hexagon belongs to the high-strength level of ordinary bolts, that is, the upgraded version of general bolts. If it is a torsional shear type high-strength bolt, it is an improved version of large hexagon.
為了更加好地去實施工程，高強度螺栓的施工就一定要先初緊然后再做終緊,初緊高強度螺栓就需要使用沖擊型電動扳手或者扭矩可調的電動扳手;而終緊的高強度螺栓就有非常嚴格的要求,終緊扭剪型高強螺栓一定要使用扭剪型的電動扳手來緊固螺栓使用其它種類的扳手會出現一系列的問題,終緊扭矩型高強螺栓就一定要用扭矩型電動扳手來操作。 這兩種高強度螺栓還有一個本質的區別就在于大六角高強度螺栓是由一個螺栓，一個螺母，兩個墊圈來組成為一個整體的。而扭剪型高強度螺栓則是由一個螺栓，一個螺母，一個墊圈來組成的。
In order to better implement the project, the construction of high-strength bolts must first be tightened first, and then the final tightening. The initial tightening of high-strength bolts requires the use of impact type electric wrench or adjustable torque electric wrench; and the final tightening of high-strength bolts has very strict requirements, The final tightening of high-strength bolt of torsion shear type must use the electric wrench of torsion shear type to tighten the bolt. A series of problems will appear when using other kinds of spanners. The final tightening of torque type high-strength bolt must be operated with torque type electric wrench. The essential difference between the two kinds of high strength bolts is that the large hexagon high strength bolt is composed of a bolt, a nut and two washers. The torsion shear high strength bolt is composed of a bolt, a nut and a washer.
因為作用不同，所以高強度螺栓可以分為大六角和扭剪型，其中扭剪型的技術參數比大六角高出一些，并有一個扭力的數值參數，為了讓螺栓符合這個預先設計的參數，不管在生產中還是存儲中還是運輸和安裝的時候都要遵守一定的標準操作規范。這一點會直接影響到螺栓的更終質量。
Because of different functions, high strength bolts can be divided into large hexagon and torsional shear type. The technical parameters of torsional shear type are higher than those of large hexagon, and there is a numerical parameter of torque. In order to make the bolts meet the pre designed parameters, certain standard operation specifications should be observed during production, storage, transportation and installation. This will directly affect the final quality of bolts.
HS 長度標準長度系列：M20×50~100，M22×55~100，M24×50~100 ，長度100以內都是5毫米進位.
HS length standard length series: M20 × 50 ~ 100, M22 × 55 ~ 100, M24 × 50 ~ 100, with 5mm carry within the length of 100
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