Thread form refers to the specific shape and geometry of the threads on a screw, bolt, or nut, defining how the threads interlock and engage with each other. It encompasses the entire profile of the thread, including the shape of the crest (the top edge), the root (the bottom of the thread), and the flanks (the sloped surfaces connecting the crest and root).
The thread form is characterized by several key features, such as the thread profile, pitch, and the angles of the thread. It determines how well the threads fit together, how they distribute loads, and how they perform in various applications. Common thread forms include the Unified Thread form, Sharp V, Buttress, and ACME forms.
