Terms containing both end threaded

Subject	English	Chinese
mech.	both end threaded	两端带螺纹的
tech.	rod threaded at both ends	两端有螺纹的螺栓
tech.	rod threaded at both ends	螺柱 (两端都有螺纹的螺杆)
dril.	threaded both ends	两端带丝扣的
mech.	threaded both ends	两端螺纹
earth.sc.	threaded both ends	两端车螺纹