I’ve included an image of an eye bolt below. Essentially, they are a threaded screw on one end and metal loop on the other. The purpose is to anchor something using them.
Unfortunately, they are also a possible single point of failure. The loop end gets all the force from the flapping shade and the screw is being held in place. It’s very possible for these bolts to snap rather than being pulled out of the wall, bracket or pole.
If you are concerned with this, I recommend checking with your local home depot professional for extra strength reinforced eye bolts. This is a case where going overboard is going to be better than being under prepared.
There are different grades of eye bolt. Grade 2 is the least strong with a minimum tensile strength of 60k pounds per square inch. Whereas a Grade 8 bolt has at least 150k pounds per square inch. While the required tensile strength for the Grade 8 bolts is 2.5 times that of the Grade 2 bolts, will cost only about $1.50 per bolt as of the writing of this video. ( source)
As an example, we’ve included a link to a set of four Grade 8 eye bolts below.