tangent screw是什么意思

网络释义

1)tangent screw,正切螺钉2)timing screw,正时螺钉3)calibration screw,校正螺钉4)self-cutting screw,自切削螺钉5)right-handed screw,正螺旋;右旋螺钉6)brass shear screw,黄铜剪切螺钉