Which statement about fine threads is true?

Fine threads are considered to be stronger than coarse threads of the same diameter primarily due to their increased surface area. The finer pitch of these threads allows for a greater amount of contact surface on the engaged portions of the thread, which enhances the load distribution across the threaded joint. This strength is particularly beneficial in applications where high tensile strength and resistance to stripping are necessary.

In environments where there are higher loads or vibrations, the tighter engagement of fine threads helps maintain the integrity of the fastened connection. This characteristic makes them advantageous in precision applications, such as in automotive or aerospace settings. Additionally, fine threads are less likely to loosen over time compared to coarse threads because of the increased frictional engagement.

The other statements do not accurately represent the properties and applications of fine threads, reinforcing why the selected answer is the correct choice.