flyerdave

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I need two muffler bolts but don't know the size. Thanks

Azcat59

As i recall, they are metric, and are 4 mm or 4.5 mm.....some odd size that will be hard to find. Sometimes the older Ace Hdwe stores have an assortment of metric bolts.

Clair Sieverling

706jim

I think 3.5 mm. Have one of these (from 1976!) and can check for you if you like. A good source is an RC car place or Micro Fasteners.