Johnson Hardware. These folks carry most everything you can think of and tons more you wouldn't. They are also very personable, knowledgeable and helpful.
They always have unusual hardware that I need. They are always my go to place. They are very helpful and usually find a solution if my very old house needs something that isn't made any more.
Staff was very friendly, helped me get a better price on a U-Haul than what I was going to originally pay and calmed my nerves about driving the U-Haul for the first time.