Author Topic: lucas headlamp bolts, `61 SR  (Read 903 times)

Offline 1660bob

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lucas headlamp bolts, `61 SR
« on: 02.03. 2011 09:18 »
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.

Online Brian

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Re: lucas headlamp bolts, `61 SR
« Reply #1 on: 02.03. 2011 09:29 »
They are just about all 5/16" cycle thread (26tpi) and about 3/4" long.

Offline 1660bob

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Re: lucas headlamp bolts, `61 SR
« Reply #2 on: 02.03. 2011 17:21 »
Thanks Brian,time to get some cycle taps.......Bob.

Offline iansoady

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Re: lucas headlamp bolts, `61 SR
« Reply #3 on: 03.03. 2011 15:19 »
Tracy Tools are very good.
Ian.
1962 Golden Flash (arrived)
1955 Velo Viper/Venom (departed)
2004 Triumph Tiger 955i (staying)