例如M16X35
For example, m16x35
根據需要固定的光孔直徑，例如，光孔直徑為11mm，可以選擇螺栓，M10，該尺寸比其小一號。 于長度，它取決于緊固件的厚度和所需的螺母厚度。 通常，將這些厚度加在一起，然后再增加5mm。 通常，擰緊螺栓后螺母可以看到螺栓的末端為2?3mm。
According to the fixed light hole diameter, for example, if the light hole diameter is 11mm, bolt, M10, which is one size smaller than it, can be selected. As for the length, it depends on the thickness of the fastener and the required nut thickness. Usually, these thicknesses are added together and then increased by 5 mm. Generally, the end of the bolt can be seen to be 2? 3mm after tightening the bolt.
