I used adhesive on the transom side. For the cable side I used a zip tie wrapped around twice. It is much easier than trying to get that clamp bent down right.
Ayuh,.... Ditto,.... except I used a Mercury outboard fuel line zip-tie,...(1 of the Many tricks DonS taught me, God bless 'im)
The zip-ties for the outboard's fuel lines have an extra little *** on 'em, that creates a full circle seal,...
No double wrap necessary,...