Origin of screw thread
Examples from the Web for screw thread
The screw-thread is then to be cleaned out, and the new vent-plug screwed in.Ordnance Instructions for the United States Navy.|Bureau of Ordnance, USN
In the same manner I close the screw-thread hole in gas tubes used for conducting steam.
On one end also a right-handed, and on the other a left-handed, screw-thread is turned.
It is provided with a screw-thread, by means of which its length, projecting downwards, is regulated.Response in the Living and Non-Living|Jagadis Chunder Bose
The fracture usually took place just at the point where the screw-thread terminated.