Mounting a battery tray

[SavDawg8]

Hey Guys,

Installing a battery switch this weekend for the extra battery I just got and need to mount the battery tray, but had a question about the screws...
The instructions say to use #10, but I'm wondering what length to go with. I would be mounting it in the center console next to the original one. I would think they would need to stop short of going all the way through, but not really sure.

Any help would be great!

[GoneFission]

Screws through the deck should be avoided IMHO...     Clean the deck and the bottom of the battery tray well with a solvent (acetone or lacquer thinner) and then put a good bead of 5200 around the bottom and criss-cross the bottom of the tray - place the tray where you want it, but a battery on top, and don't disturb it for a day or two.  You won't need screws... 

[wingtime]

3/4" screws should be fine. Seal them well with 5200 or 4000uv. I think a battery is to heavy to mount by adhesive only.