"Hold" what they promise .....

and that in the truest sense of the word ;-)
Use the fasteners in the home's basement and so far they fulfill their services to my full satisfaction.
They sit close to the bar and it wobbles nothing!
Have now no study over several years developed naturally and therefore does not know how it after years of use
function. But since they do not all have to be expensive, a new purchase is then also possible.

So far, however, still a long way, because they function properly.