Jewelry Findings

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I bought the generic hobby lobby earring posts and found that a lot of them break. Sometimes it was my glue but quite a few of them the post actually broke off of it's base. So I am now investing in jewelry findings online. I read on crafster I think, that https://www.rings-things.com was good. But I thought if I could find the kind of posts that are rough on the back instead of plain flat, that it would be easier to glue them securely. Only I am unsure what this is called, where to find it, or if to trust that place when found. :( Do any of you have experience with this??