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Headlamp bolt

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Headlight bolt size?

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Hi does anyone happen to know the size of this bolt? Or does the headlight have a captive nut in it? 
Thx
​​

Tony, 

I thought bolt was BSF thread. So checked. 

Go on the NOC shop and the headlight bolt is there, 5/16 BSF. Part numbers S0238, S2688, and 19272B.

Same bolt for heavyweights and lightweights. 

On the lightweight one of the few BSF threads, so tipped my memory. 

Most unusual these days to find original captive nuts still in shell. 

Peter

 

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If you found a slightly longer than standard bolt.(standard has the semi domed head) then of course you could fit a nut on the inside, and of course you might get away from the BSF. At this point if you had a threaded bolt into the head lamp you could very easily mount any head lamp gubbins to it ie an indicator flasher. Or just a tie wrap to keep wires in order.

 



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