The screws shouldn't be brittle unless they are old. The screws should be looser because metal expands in heat and retracts in the cold. If they do stick , try changing it when it is a bit warmer.
Normally 2 but it depends on the make vehicle.
From inside the luggage area. There are either wing-nuts and or screws.
no
From the outside of the car.. Just un-screw the two screws and change the bulb.
Disc brakes at the top of the caliper Drum brakes at the top of the wheel cylinder
With the bleeder screws
On a 2002 Isuzu Trooper, the bleed screws are located on the brake calipers and the brake master cylinder. For the front brakes, you will find the bleed screws on the top of each caliper. For the rear brakes, the bleed screws are typically located on the rear brake cylinders. Always ensure you have the correct tools and follow proper procedures when bleeding the brakes.
On the Mazda B3000 1994 there are four screws. Two Phillips screws on the outside glass and two Phillips inside on the panel. Loosen these four screws and the entire assembly will come out.
you have to remove the panle on the outside of the jeep between the hood and the windshield. 4 screws.
Replace wheel cylinders
I don't think so. You are dealing with a thin brittle veneer. It will probably not hold.
Screws belong to the family of mechanical components known as fasteners. They are used to attach things to the bike. Screws are typically used to attache fenders, some brakes, reflectors etc.