I get the desire to not want clock-punchers. But I've seen all variety of teams bust their collective ass to get a product working as good as it could. (And then grind to a stop in 5 minutes when management sends an email saying they have to work overtime.) This was without trying to only hire people willing to dump in massive overtime.

I don't think getting developers to bust their ass is something you can recruit. I think it's something you can cultivate by making it clear that the developers' product is valued.