Most of the "one time use" bolts come with thread locker/sealant on the threads.Fact is 90% or more of the "one time use" fasteners are no such thing. Just looking at them you can see they are not stretch bolts and when measured against new are identical, there is no stretch area on the bolt, a nut will spine right down the threads with no binding.
On some VW models if you replaced ever bolt the say (one time use replace) on a clutch job there are over $200 worth at dealer retail.
I replace the clutch cover and flywheel bolts only, if the others are in good shape they go right back in.
Mercedes used to have a okay to reuse length on some of their bolts.
Easier to tell the tech "install a new bolt" than it is to hope they know how to use thread locker/sealant appropriately.
And if they are stretch bolts, good luck getting a tech to measure them before reinstalling.