Most of the time, little details matter, at least somewhat: the type of driver (e.g., square drive or Phillips head) used for the screw, the existence of an unthreaded shoulder, the size and ...

Used over 2000 years ago by the Egyptians for irrigation, the Archimedes screw is still in use today, ranging in size from a quarter of an inch to twelve feet in diameter.

The world is literally kept from coming apart by screws and bolts, and yet we don’t often give a thought to these mechanisms. Part of that is probably because we’ve gotten so good at making ...

The screws were FDM printed in PLA, ten in total, each identical in diameter, length, and thread pitch, but with differing wall thicknesses and gyroid infill percentages. Each was threaded into ...