The thread is named after Marc Thury, an engineer and professor at the University of Geneva who contributed heavily to the standard's development.
This production technique mandated that the Thury thread form have rounded crests and roots.
[4] Thread forms with rounded or "radiused" crests and roots like the Thury and Whitworth thread generate smaller stress risers than those forms like the American National or ISO metric which have truncated roots and crests; in modern engineering this is particularly important factor when tapping holes in acrylic plastic, where a larger stress riser can lead to an earlier onset of crack formation.
Today the Thury thread is rare outside of antiques due to the relative abundance of other standard sized fasteners.
For example, the British Association 0BA, the Löwenherz 6 mm and ISO M6×1.0 fasteners have identical pitch and diameter to the Thury size 0 (however, they are not interchangeable because they differ in thread geometry).