On a 1946 Knucklehead were the Handlebar cinch bolts and the 3/8 bolts that held the rocker boxes on CP 1035 thanks
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CP1035 bolts
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Dan, Handlebar cinch bolts 6033-30 were CP1035 through 1951 (CP1038s began appearing in 1948). I cannot speak positively that the rocker box bolt was CP1035 or Machined Plain Head in 1946, but I would bet it was CP1035.Bruce Palmer III
AMCA #667
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