by snapping, a assume you mean has it every broke and fell from the hook? No, they are built pretty strong to hold alot of weight. The spring that came with mine held 200 pounds. I went out and purchased a new 400 pound swing off line. You can find them on web sites that sell springs for porch swings. I have never had a problem with my swing. I wrote a review on it, you should check it out if you have any questions.