ball headed conical bolt 球头锥形螺栓
conical head bolt 锥头螺栓 ; [机] 圆锥头螺栓
large conical gear bolt 大圆锥齿轮螺栓
conical l bolt 锥形螺栓
large e conical gear bolt 大圆锥齿轮螺栓
The lower part of the bolt is conical.
螺栓下部呈圆锥形。
The top part of one inner bolt which matches the blank hole channel of the outer hollow screw is also conical. The rear is provided with a thread and a tetragonal body for holding.
一与外空心螺钉的盲孔道相匹配的内螺栓，内螺栓的尖端部位亦为锥形，尾部设有螺纹和供握持用的四方体。
Connecting bolts are arranged in the plugging conical points, and an anti-rotation key and an outer six-square sleeve which can realize the linkage are arranged on the screw bolt.
封堵内置有连接螺栓，螺栓上设有防转键及实现连动的外六方套。
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