They are actually on the service road north of Crystal, East end but
it is a great resource for all sorts of hot dipped galvanized hardware
at a good price. It is a whole lot cheaper than the "dock/boat lift"
store
They are pretty good about letting you graze through the bins and
collecting a bag of bolts, washers, plates or whatever. Then you take
it to the office and pay. They like cash. ;-)
I assume you know about this place on Hanson Street?
They have a good selection of hardware also - galvanized, stainless,
and maybe some bronze as I recall. They also sell very handy
"briefcase" style tool kits at a good price. The amount of stuff in
their back room is enormous.