Ransomes TS90 disc assemblies

[Farmerpickle]

Good morning all,
I would like to know the size of the coach bolt that clamps the skimmer arm onto the disc assembly. Could anybody help me out.
Many thanks.

 

[Howard150]

13/16th's spanner. M12 (19 spanner) coach bolt would probably do the job of you can't get 13/16th's. Westlake will probably have them.

 

[Milli]

1/2" x 1 3/4" but as above M12 will do it.

 

[Farmerpickle]

13/16th's spanner. M12 (19 spanner) coach bolt would probably do the job of you can't get 13/16th's. Westlake will probably have them.

1/2" x 1 3/4" but as above M12 will do it.

Thank you both. I have tried M10 however, the square piece was too small. I must try M12.
I am picking your brains again now. Do you know what size steel the stalk is?
Merry Christmas to you all.

 

[Milli]

Merry Christmas to you too, I'll measure one when I escape out the house to feed later!

 

[Milli]

The stalks I've got here are a fraction over 25mm so I would say 1" bar originally.

 

[Ley253]

If you want them to stay put, widen the split in the holder, and weld a strip of steel to the bar to act as a key. This should be low enough to pass under the bolt of course.