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(shí)施工程，高強(qiáng)度螺栓的施工就一定要先初緊然后再做終緊,初緊高強(qiáng)度螺栓就需要使用沖擊型電動(dòng)扳手或者扭矩可調(diào)的電動(dòng)扳手;而終緊的高強(qiáng)度螺栓就有非常嚴(yán)格的要求,終緊扭剪型高強(qiáng)螺栓一定要使用扭剪型的電動(dòng)扳手來(lái)緊固螺栓使用其它種類(lèi)的扳手會(huì)出現(xiàn)一系列的問(wèn)題,終緊扭矩型高強(qiáng)螺栓就一定要用扭矩型電動(dòng)扳手來(lái)操作。 這兩種高強(qiáng)度螺栓還有一個(gè)本質(zhì)的區(qū)別就在于大六角高強(qiáng)度螺栓是由一個(gè)螺栓，一個(gè)螺母，兩個(gè)墊圈來(lái)組成為一個(gè)整體的。而扭剪型高強(qiáng)度螺栓則是由一個(gè)螺栓，一個(gè)螺母，一個(gè)墊圈來(lái)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?yàn)樽饔貌煌?，所以高?qiáng)度螺栓可以分為大六角和扭剪型，其中扭剪型的技術(shù)參數(shù)比大六角高出一些，并有一個(gè)扭力的數(shù)值參數(shù)，為了讓螺栓符合這個(gè)預(yù)先設(shè)計(jì)的參數(shù)，不管在生產(chǎn)中還是存儲(chǔ)中還是運(yùn)輸和安裝的時(shí)候都要遵守一定的標(biāo)準(zhǔn)操作規(guī)范。這一點(diǎn)會(huì)直接影響到螺栓的更終質(zhì)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(zhǎng)度標(biāo)準(zhǔn)長(zhǎng)度系列：M20×50~100，M22×55~100，M24×50~100 ，長(zhǎng)度100以內(nèi)都是5毫米進(jìn)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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