Learning hardware-ish names

If you are like me you have walked into a hardware store looking for a cosa or a chuncha because you didn't know what it was really called. While there are lot of cases where the correct name is not used and there are some variations in names in the region, I just accidentally found what seems to be a useful resource.

I was looking for stainless steel screws (which they have) and tripped on MultiMateriales in Guatemala City. The particularly cool part of the site is if you mouse-over Productos and then follow the sub-menus. In many you can then mouse-over a particular item name and you will get a pop-up picture.