Please clarify??? "Fuel Line?" WWW is not specific as to these compared to the "black" ties, which are UV rated and do not contain metal. Photos appear them as the same. But, I am no expert. I've used the blacks ones for decades. But, even the black industrial grade ones eventually break down due to sun light.
All the other bellows/rubber have ground tabs. I am curious why the shift cable and drive lube rubber tubes/boots are not grounded. Perhaps just not feasible?
the only place i've seen as of late to acquire fuel line zip ties is from mercury marine. not sure as to the composition of material used in manufacturing them but seeing as how mercury sells them as fuel rated my guess is they are stout enough for securing a shift bellows without sever degradation. your local mercury dealer should have them in stock
the clamp portion, as stated by campfire, has a radius so as to fully clamp around a hose, tube or otherwise without a gap
as far as no tab for grounding the only explanation i can think of is, yes it isn't feasible seeing as the bellows material which mates to the gimbal housing is quite thin and the diameter much smaller compared to the other bellows flange mount areas. the risk of damaging the bellows or compromising the sealing surface with a clip allowing water intrusion to the bilge is too great. the gear lube monitor hose is held in place with plastic retainers, no need for continuity
