Thread size for oil tank cover screws

Information relating to the Matchless G11 or AJS Model 30 600cc twin
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Thread size for oil tank cover screws

Postby MartinAmes » Wed May 01, 2013 1:01 pm

I have a G11 1956 with the slab side oil tank. There are two chrome screws that hold the cover on.
The thread in the tank has been worn way at the front, but is still good further in.
I need to get some slightly longer screws so that I can tighten it up.
Does anybody know what thread they are?

They appear to be the same thread as the chrome knurled screws for the frame cover.

The other alternative is to re tap them a bigger size, or use helicoils, but it would be just easier to get some longer screws.

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Re: Thread size for oil tank cover screws

Postby Rob Harknett » Wed May 01, 2013 1:30 pm

Or maybe spot weld a nut on?

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Re: Thread size for oil tank cover screws

Postby aobp11 » Wed May 01, 2013 6:22 pm

I think that must be 000348 bolt, 1 5/16 x 1/4 x 26TPI, BSC (or BSF?).
Albert

Oh no, via Rob's comment below I see that I mixed up oil tank and fuel tank.
Albert
Last edited by aobp11 on Thu May 02, 2013 8:50 am, edited 1 time in total.

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Re: Thread size for oil tank cover screws

Postby Rob Harknett » Wed May 01, 2013 9:49 pm

pt.no. is 022632 and most likely 1/4 26 tpi

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