How long do you want them to last...go ahead make a wish
I have had my French doors for two years. I alway lube them every so often. But I just had an issue with the pin of one of the hinges that was bent, which cussed it to get stock. I removed them one by one , cleaned them and applied axle grease. The door works perfect now, minus one. I’m in the process of replacing that one pin that is bent.
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