Whatever you choose make sure all the working loads match. Swivels seem to be one of the controversial issues that have never been resolved. This is because the manufacturers seldom, if ever, list working loads. My neighbor watched his swivel fall apart as he got the anchor to the boat, losing his anchor in the process. I'm guessing the same function that the swivel uses to hold the anchor in a set position, is vulnerable to side loading. I switched to the Crosby shackle, which is the only company that came close to matching the
WL of my 1/2 chain. The reason I couldn't use the shackle that matched the working load, is that the closing bolt was to thick to go through the chain loop. When I purchase new chain, I will have them weld several links of 5/8 inch chain on each end of the chain, so I can attach a bigger shackle.