The Simpson product is famous, but there is a feeling that it is not penetrated by the home center more than I expected.
Moreover, if a certain number is necessary, especially much.
I always use Monotaro san.
I think that if there is a little more wall thickness ... it is up to the idea of the combination.
I found the metal fittings on the net and even the manufacturers, but I can not check the real thing in the district. You can check photos with a monotail, you can check with other figures, other shop comparison price OK. I was saved because we corresponded not only to lot selling but also to necessary number selling