High quality hose clamps

In an unrelated thread we were discussing sourcing high-quality stainless hose clamps of the embossed-screw and fuel-injection types. An Australian source was given for Norma clamps, which are available in the US from JEGS, Amazon and Ebay.

The JEGS SS embossed screw clamps in the larger sizes are mostly Norma and some Murray.
However their smaller fuel injection clamps are zinc plated. My bad.

Stainless FI clamps seem to be harder to find.

These HPS all-stainless fuel injection clamps look to be a high-quality product - available on Amazon or direct from HPS:

If money is no object you might want to check out Oetiker's clamps: www.oetiker.com. Beyond the usual screw clamps they make some interesting alternatives.
Then too you might want to look into Titan's clamps made from--what else--titanium: https://www.titan-marine-hardware.com/titanium-hose-clamps.htm

Having spent many years involved with boats that are always looking for a way to sink I used high-quality name brand stainless steel clamps, put two of them on critical below-waterline applications and installed them so that they were easy to inspect and tighten. I adapt this practice to my cars and where possible, such as on radiators, water pumps and fuel fittings, always use two clamps.

Personally I don't think that clamps rated for fuel injectors are necessary but this is no place to scrimp. Cheap clamps made of low-quality SS will rust and fail so whatever type of clamp you choose go for a known brand.

I'm a fan of Oetiker clamps myself! I like that they're available (from WW Grainger) in a range of sizes; I keep them in a compartmented bin from <13mm to >30mm.

Those clamps look like what I used for the pex plumbing in my big bathroom remodel. They seal well but are one and done and kind of a pain to remove. I guess I am both too cheap and not confident enough in my work not to employ a reusable screw type clamp.