If i was going to use hooks, i think i would buy mawby hooks, they are made for the job.
https://www.caravansplus.com.au/13mm-mawby-hook-3500kg-atm-safety-chain-coupling-twin-pack-p-24623.html?gQT=1
Just looking at that site & spotted
That chain looks
way too skinny for 3.5t hooks
