All I can say is I've been using SS worm clamps on my various Honda rad connections for quite a few years without a single issue. Just use common sense when tightening and you'll be fine.

 

Just ran into a thread about not using worm-drive clamps on your radiator hoses.
I was about to pick up a couple of stainless clamps as i know at least two of the spring clamps are real rusty on the 2004.
The post said don't use the worm-drive clamps as you could crack the plastic inlets they are over.
Isn't this just a matter of "don't tighten too much?" I didn't pick up the spring clamps in my big order... and local dealer wants $14 a piece for them....

As you've found out, the advantage of the spring clamps is that they can't be over-tightened and if you do over-tighten the spring drive type, there is the risk of damaging the plastic inlet/outlet on the radiator.

The made-for-Honda spring clips/clamps shouldn't be more than $7 each, unless your dealer is gouging.
You can use the estore.honda.com site to check parts prices at local dealers.
Also, check prices with any Acura dealers in your area.

Honda Automotive Parts

 

oh... gouging is happening here

if i had known how rusted a couple of these were... they would have been ordered in my original parts binge.