Spring washers, anyone?

[Les Huckins <jhuckins@xxxx>]

Windshield wipers call for a spring washer and a nut, I have two
ordinary wrought washers. DMC Houston does not list them, PJ Grady
doesn't have them, the two local hardware stores never heard of spring
washers or wavy washers. Rather than knocking on every door, does
anyone have a source? (I'm not really a purist but I do give everything
a shot).

Thanks, Les