Which type of screw thread is known for producing high friction?

The V-thread screw, characterized by its wedge-shaped profile, is designed to generate significant friction when engaged. This is largely due to its geometry, which allows for increased surface contact between the threads of the screw and the corresponding threads in the nut or material it is entering. This design enables the screw to resist loosening under load, making it suitable for applications where securing components is crucial.

The high friction produced by V-threads is advantageous in scenarios requiring tight fastening, such as in machine components and fixtures. However, it's worth noting that the other thread types, while also used in various applications, do not provide the same level of friction as the V-thread. For instance, square threads, while effective for lifting or vertical applications due to their efficiency, are less effective at generating friction. Similarly, Acme and Buttress threads each have specific characteristics that make them suitable for certain tasks, but they do not inherently produce the same high friction as V-threads.