Can I use a regular socket on an E-Torx bolt without stripping it?

I have to take off my caliper mounting bracket (2006 Saab 9-3), and they're held on with E20 Torx bolts. Can I use a regular hex or star socket on an E-Torx bolt, without stripping it? I can't seem to find an E20 Torx socket except online, and they're expensive. Thanks in advance!