FLIGHTS AND FLIGHT CLIPS
The photo below shows an angle flight, bolted to a belt with a flight clip.
Since flight clips are bolted to the belt they can be easily installed and replaced. However, flight clips will interfere with sprockets and therefore can be difficult to position in narrow belts.
If this will be an issue, flights can be made with tabs that stick below the belt and welded to the belt. Keystone does not recommend these flights taller than 3 inches above the belt.