Question

How do you define the pitch of a screw?

Answer 1

1. Pitch is the distance between screw grooves and is commonly used with inch-sized products and specified as threads per inch.
2. Lead is the linear travel the nut makes per one screw revolution and is how ball screws are typically specified.
3. The pitch and lead are equal with single start screws.
4. The pitch of a screw reflects the linear distance traversed by the screw in one complete rotation.
5. Pitch is the distance measured parallel to the axis between a point on one screw thread and a corresponding point on the next thread.
6. The basic effective diameter of a screw thread, roughly halfway between the major and minor diameters, is known as pitch diameter.