ACE hardware has a full line of bolts here some FLAPS do to , if the front is not 3/8 I will post it latter .
Pete
Off the subject a little, but it's interesting what you say about ACE. Ours is the same. I just thought it was the local owner doing it, but maybe it's a company idea. They are certainly better supplied with all kinds of fasteners then any box store around here and priced resonably.