Anybody know a source of supply or even the propper name for chain hooks? never had to buy them before and can't find them or anything similar around town or on GSA. Thanks.

Look for Halibut hook at any good commercial fishing supply company. If in Seattle, look up Pacific Fisherman Shipyard in Ballard.

Make sure you tell them its for chain, not fish.

Here's a possible source: http://www.tooleefishing.com/Chain-Fitting/default-6.html

This ???

or
Load binders/steamboat ratchets ???

I've seen them made locally with a welder and scrape metal laying around. Work great and no money spent if it goes overboard. Make it to your dimensions wanted in the style of the picture above and you should be good to go!

I have always had the DC's make them.

I have got them from stock system and from mcmaster carr.
I can get you the info wednesday if you want email me.
Douglas Anglebrandt in global.

Find a local elevator company and tell them you want to buy a rail hook. I have three or four of those suckers lying around my warehouse in Chelsea if you need one?