There are 10 things you need to know about seacocks and thru-hull fittings.
If you don’t take good care of these fittings, firstly by fitting the correct ones initially and then by maintaining them properly, one day one of them will sink your boat.
Find the 10 things you need to know about seacocks and thru-hull fittings here
And you should also read the frightening story about stainless steel hose clips