That s the original screwable valve with.
Water faucet handle keeps turning.
Lemonplumber fl you just got two great replies the packing nut is the one you see just behind the plastic handle 1 4 turn usually dose it mark the brass behind the handle to be sure it turns with the handle good luck.
No matter the brand a few steps are universal.
Shut off the water in your house by turning the main water valve to the closed position.
The faucet handle may have a plastic decorative cap that hides the screw holding the handle to the valve.
Gently and slowly turn these off righty.
Fix 2 the next possibility is that the stops that are broken off.
That piece that holds the stem and handle in place can be removed and just be replaced with a new unit.
Outside faucet not working.
If that were the case you would probably have a leak around the tap handle.
If the faucet handle is loose tighten the screw until it is snug by turning it clockwise with a phillips screwdriver.
A faucet with handles can have a cartridge or disk valve but if you can turn the handle through more than 90 degrees it probably has a compression valve.
If this is the case you may need a new piece in the faucet that incorporates the stops if it is separate.
Remove the handle.
Close the drain or cover it with a towel to avoid losing screws and other small parts.
If so you should be able to screw the cap nut down in which case the handle will re engage the stops.
The cap can be pried off with a flat head screwdriver.
Just look for the large nut fitting that will turn to release the stem and the handle.
Turn on a faucet located on a lower level than the shower s location releasing any leftover water pressure in the pipes.
Step 2 locate and remove the set screw that holds the knob onto the faucet assembly.
You may have to giggle the handle as you wind the nut down.
If the faucet was.