The chain is suitable for towing and pulling of load up to 750 lbs. but not designed for overhead lifting. Grade 80 chains are designed for overhead lifting
The outside diameter/width of the link is about 0.78 inch. It will pass through 1” opening.
We do not sell this by the foot online. However, we do sell the 100ft in a box online.
No, nothing large than 1/4" will fit
Stabilized a 10' open umbrella in 50MPH winds when anchored to the shed with a 1/2" eye hook.
Yes you could. It might be little heavy duty for a bike. It would weigh a lot and might be difficult to manage.
I suppose you could but you would have to cut every other link to get single links. It would be tedious process.