Looking for source for rack hardware...

I have an Odyssey 4x8x12 slant top rack that I use nightly, and the catches that hold the doors on are getting sprung. I know I have seen them available at hardware stores, but my trips to the local Lowes and Ace have turned up fruitless... They are the standard square recessed 2 piece catch that are on most Odyssey racks and similar products.

Anyone know of a good source for this kind of stuff where I could pick up some replacement catches?

Maestro, Fred, anyone I know we have some threads with hardware discount outlets linked.

This is the rack I use.... http://www.odysseygear.com/display.php?sku=cs4812w,

and this is a better picture of the type of catch I am looking for...

http://www.odysseygear.com/display.php?sku=cmx08p

Here ya go direct from the maker

http://www.odyssey-parts.com/recessed_latch.shtml

OR here as our Sponsor Northern Light
FX carries more product than most he also has hardware and a parts dept to boot and I believe if you look at his latch its 2 dollars cheaper. Likely the proper replacement.
http://northernlightfx.com/cart/home.php?cat=1246