I think it would take a catastrophic event to cause weaker stainless bolts to break in a place where CC uses Grade 5 bolts. I had just an event a couple of years ago when the gauge wheel on my 54 inch deck broke off while I was mowing. Before I could react I ran over the wheel. It stopped the blades on the deck in an instant. Fortunately there was no major damage. I do wonder what could have happened if the spindles were attached with stainless bolts instead of the Grade 5 that I used.
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