The threading suggestion presupposes owning a die, and more important that the bolt is sufficiently soft to thread with a die. Better quality bolts (and many cheap ones) are heat treated to fairly high hardness and not that amenable to threading. Trying to do the job and finding that out means the loss of both the brake bolt and die.
The $1.00 fix of adapting a washer or drilled out brake nut is the way to go.
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FB
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