Not sure with a slide lock. With the drop in bolt lock like the E-T, you can mount them to the bottom side of the screen. The provided screws provided will need to be swapped for bolts, and use a nut with a nice wide flat washer on top of the screen for weight distribution. From what I've read, they should be placed in the enclosure. If placed directly on the screen, they can trip the thermal safety fuze. Maybe contact Reptile Basics to reverify that info.
Sent from my Nexus 6 using Tapatalk