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1.将螺纹孔扩大,镶进一个与原来接头螺栓相配合的螺母: 2.将螺纹孔扩大一级、开牙,配以相应的接头螺栓。把机油管焊上相应的油管接头; 3.将螺纹孔扩大,镶进相应的螺母,加工一双头接头螺栓。此螺
1. Expand the threaded hole and insert a nut that matches the original joint bolt: 2. Expand the threaded hole by one level and open the tooth with the corresponding joint bolt. Connect the oil pipe to the corresponding pipe joint; 3. Expand the tapped hole, insert the corresponding nut, and process a double-headed joint bolt. This screw