How many kilograms does it take to tighten the wrench on the M20 high strength bolt? The first thing to know is whether the high strength bolt is a big hexagonal bolt or an electric torque shearing wrench.

　　高强螺栓分为扭剪型高强螺栓和大六角高强螺栓。大六角高强螺栓属于普通螺钉的高强等级，扭剪型高强螺栓是为了更好地施工而改进的大六角高强螺栓。

　　High strength bolts are divided into torsional shear high strength bolts and hexagonal high strength bolts. Large hexagonal high strength bolts belong to the high strength grade of common bolts. Torsional shear high strength bolts are improved large hexagonal high strength bolts for better construction.

　　施工高强螺栓必须先紧固再紧固，高强螺栓用冲击式电动扳手或扭矩可调电动扳手;终拧紧的高强螺栓有严格的要求，终拧紧的扭剪式高强螺栓必须使用扭剪式电动扳手，终拧紧的扭矩式高强螺栓必须使用扭矩式电动扳手。

　　Construction of high-strength bolts must be tightened before tightening, high-strength bolts with impact electric wrench or torque adjustable electric wrench; final tightening of high-strength bolts have strict requirements, the ultimate tightening of high-strength torsional shear bolts must use torsional shear electric wrench, the ultimate tightening of high-strength torsional bolts must use torque electric wrench.

　　紧缩大六角高强度螺栓的拧紧力矩扳手,M20大六角高强度螺栓端螺丝扭矩值是需要通过计算转矩系数的测试,但一般M20螺栓扭矩值450 n m,如果你是一个扭剪型高强度螺栓,就好了,使用电动扭转剪切扳手扭线,如果转折,它会自动把螺丝的梅花头扭断,这意味着转折。

　　The tightening moment wrench of tightening large hexagonal high strength bolt and the torque value of M20 large hexagonal high strength bolt end need to pass the test of calculating the torque coefficient, but generally the torque value of M20 bolt is 450 n M. If you are a high strength torsional shear bolt, you would like to use the electric torsion shearing wrench twisting line. If turning, it will automatically break the plum blossom head of the screw, which means turning.

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