I use it to take a slack in a tire chain for a motorcycle. Although the tensile load is somewhat low, it can be caught in various places accordingly! As the price is affordable, we will add more for spares!
Although it is a spring for fixing the muffler of the motorcycle, even if it is brand new, it will rust soon, so you can buy it at the same time, it will be saved with the affordable price and itchy place that the hand reaches.
It feels more delicious than I thought, but the spring is working firmly. I am stretching flameproof sheets on the simple roof of the bicycle storage area, but it is diverted to counteract wind storms with springs at the four corners and to prevent deflection caused by tension. Although there is no problem at all in terms of functioning, durability is yet to be understood.