Mastercraft Tools review: 10 inch compound mitre saw, model 55-6895-4, serial # wo33353

The arbor bolt that secures the blade broke, when I contacted master craft they said my saw was too old. Although it is 18 years old I hoped I would get help locating the proper bolt. I bought this saw from the Canadian Tire store on Chemong Rd in Peterborough Ont. on the 18th of November 2003. The product # is 55-6895-4. I am not looking for a free bolt, I just need your help in locating this bolt.