RVLock usually has a 40% off sale around Thanksgiving, so it should be coming soon. Folks on this forum and on FiberglassRV forum keep an eye out for it and usually post a notification to all. RVLock also has random 10% off sales throughout the year. So you know, you can order hatch locks keyed to match your door lock, but they have long lock barrels (1 1/8"), so you have to tweak the cam to make it fit an Escape hatch.
https://www.rvlock.com/products/rvlo...SABEgLL2PD_BwE