drain plugs

I'm looking to replace the hex plugs on the Tcase. Went to my local Napa and they said the 704-1346 Balkamps are on special order. So I decided to look online for a M22 x 1.5 plug instead. I found two different ones.
http://www.rockauto.com/catalog/moreinfo.php?pk=14615
http://www.rockauto.com/catalog/moreinfo.php?pk=1821068

First one is ideal since it's a 19mm head. But it's longer than the 2nd one by 2mm. I don't suppose it would make a difference but anyone care to chime in? Also I'm looking to replace all the plugs with the 19mm head since I don't have a 30mm socket. Thoughts?

Why don't you just get the tool??

Why should I carry two sockets when I can have one socket?