Canadian Tire is not the only choice for hardware stores
If you can't find what youre looking for at Canadian Tire, try Princess Auto, KMS Tools or Rona. You can also try local suppliers for more specialized things, don't defer to Amazon it you can't initially find what you're looking for.
EDIT: Adding Home Hardware or BMR in Quebec, and Lee Valley to the list!
EDIT2: I've been informed Rona was sold to an American company.