Installing a new hose bib on the house

There's no gasket but I did notice there are slots for screws but it did not come with any screws, am I expected to screw it into the house, or is that optional? It's brick, so to me it seems pointless to screw it in, tapcons are ok for sideways strength but not pull out strength so they would not do much.

I will probably just use a pex T fitting and tap into existing pex.

On similar subject, what is the best way to fasten a hose roller thingy (no idea what the proper term is LOL) to the house? Could I use some of these or are those specifically for concrete?

I may also just get one that goes on the ground, might be easier.

Ok I have a pretty serious issue. I'm just glad I added a shut off upstream of this because its off now. The threaded portion is leaking, but since I used a crimp connector I can't turn it anymore so I can apply more teflon or do any kind of troubleshooting. What is the best course of action here? My car has a gas leak in the gas line and I'm hoping to avoid another trip to the hardware store, otherwise I'd just cut the end off and go buy a new fitting and then recrimp. I have a heat gun, can I like, melt the teflon into place or something so it seals better? Since it's a very small leak, could I get away with caulk?

edit: I bit the bullet and went anyway, bought a new fitting (should have both more than one...) and I"m at it again. This time I'm trying with pipe dope. Do I need to wait for it to dry or anything or is that something that just stays moist, like oil? The bottle says nothing about dry/cure time.

I cut the fitting off, added a new fitting, used teflon dope instead of tape, used lot more force to tighten it, and so far so good. I turned the hose on and off fast to do a brute test, and so far no leak, though with the pipe dope it may take a while for it to show up if there is one, so I will know for sure tomorrow when I go check.

So think I'm good to go!