Do It Best is a co-op of independent hardware stores. This month, they're running some sales on trailer and RV items.
If this link does not work, go to http://www.doitbest.com and click on "sale items." Any of these are available as "ship to store" with no shipping charge. It's an option I frequently use from my corner hardware store.
http://www.doitbest.com/Main.aspx?PageI ... tId=109195
(I don't work for them, I'm just a regular customer trying to keep my local store in business).
You can also see their RV category at http://www.doitbest.com/4294965757-RV+supplies.dib (though their abbreviations, search and classification system often leaves me puzzled)