Bought them yesterday Tim here in Aurora, Illinois HF, 8/$4.99 no shipping, add a few cents for tax.
Those that you have linked to on ebay are a rip off, four for $11.00 including the shipping and they are probably just the HF package split in half and sold on his ebay site.
Don't know what you mean about the .035" clamps??? both of these use a .040" web giving you a .040" gap. The .005" that your asking about is only the thickness of a heavy hair.
And to any newbies out there taht are using these for the first time, their just for positioning and tacking the panel in place, DON'T leave them in when you start to stitch the panel or you will never get them out.
Denny Graham
Sandwich, IL