BLADE/BOLT w/ star washer

[TVH]

My saw is an older Rockwell model 315. I came w/ a 7/16" blade bolt w/ a star washer locked in a groove on the bolt. The old washer has broken off teeth and needs replaced, but the 7/16" blade bolt w/ washer is no longer available. There is a 5/16" bolt and washer still available. Has anyone else come up w/ this problem? I can use the old 7/16" bolt without the original
washer, if I could find a separate tooth type star washer in a 7/16" diameter, or one that could be drill out to 7/16". Any ideas on where such a washer might be available? It's been a fine saw and I hate to junk it for lack of a washer.
Thanks for any ideas. TVH

[WJA]

Hello TVH,

For the Rockwell model 315 the blade bolt is a part number 846781 and the part number for the washer is 801669. For the model 315-1 the blade bolt is part number 684398. The same washer is used on both models.

Hope this helps,
-WJA