We didn't really get to that.
I ordered them from www.madss.com
They said 5 to 6 days.
I know these clamps are stainless and they are more narrow than standard worm clamps so I bet you they are the marine ones.

Thank you Moe, that is VERY generous of you.
I think I will be ok unless they ordered the wrong parts;)

Mr. Gore www.gore-galore.com