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The BSA A7 & A10 Forum > Technical > Lucas, Electrical, Ignition  > lucas headlamp bolts, `61 SR
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Author Topic: lucas headlamp bolts, `61 SR  (Read 359 times)
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1660bob
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« on: 02.03. 2011 10:18 »
Hi All. What size/thread are the two headlamp mounting bolts betwixt the headlamp brackets and shell on the non-nacelle type headlamps?
 The previous bodger of my bike has drilled them out and fitted M8 bolts/nuts-YUK! i would like to repair properly i.e. helecoil or make up threaded bosses to fit to the shell as its an original Lucas item and otherwise good. I can then get the proper chrome/stainless bolts to fit as per original thread, anyone know the thread type/dia?
(Poss.5/16" dia?-a 3/8" bolt will not fit into the drilled out holes left by the previous bodger) Cheers, Bob.
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Brian
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Mt Gambier, South Australia.
« Reply #1 on: 02.03. 2011 10:29 »
They are just about all 5/16" cycle thread (26tpi) and about 3/4" long.
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1660bob
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« Reply #2 on: 02.03. 2011 18:21 »
Thanks Brian,time to get some cycle taps.......Bob.
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iansoady
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« Reply #3 on: 03.03. 2011 16:19 »
Tracy Tools are very good.
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Ian.
1962 Golden Flash (arrived)
1955 Velo Viper/Venom (departed)
2004 Triumph Tiger 955i (staying)
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