Spider Id (might be S. Grossa)

[XxSpiderQueenxX]

I recently found this little guy in my garage. He's a few millimeters long, and I think he might be S. Grossa. Help on Id-ing anyone? If whatever species he is is harmless, any care tips? (pics attached)

 

[Ungoliant]

I recently found this little guy in my garage. He's a few millimeters long, and I think he might be S. Grossa. Help on Id-ing anyone? If whatever species he is is harmless, any care tips? (pics attached) View attachment 324538

It's a Steatoda, and they're not medically significant. Care is similar to that of other cobweb spiders: they just need a place to web.