So I get my front wheel off to start my brake job and I find the caliper mounting bolts are a female hex head. Anyone know what size allen wrench it takes? I'm gonna have to put the wheel back on and go to the store to get it.

Big. I'll check. Hang on.

3/8"

Get the 3/8 drive socket. 3/8 hex by 3/8 drive. You'll thank yourself later. Most hex keys (allen wrenches) are too short to develop the torque to breat it loose.

Bastard. I should you.

Thanks, but I searched it after I posted and just got up and left for the hardware store and got the 3.8" socket drive. And I forgot to let you know after I got back. It took me about 2 hours. ONly snafu after the hex socket is one of the bleeder valves twisted right off when I tried to open it. But it'* all done and they look great behind my chromies.