under tray bolt sizes

[CB 1971]

hi,
just took under trays off to get a better look of sub frame.two were held by plastic zip ties,could someone tell me what size bolts i need,when i tried a bolt from the under tray in the two which where zip tied it was too small,

[normanh]

From memory I believe they are 5mm or possibly 6mm nothing special cant remember the pitch but most seize and the captive nuts shear off when removal is attempted.

Norman

[Call the midlife!]

They should be M6, you can get a bag of 10 stainless for less than £2 from Screwfix.
If any are bigger then chances are they've been drilled out by a previous owner, you could try tapping them out to a slightly bigger size but probably won't get bigger than M8 with the amount of metal to play with.

[Carolyn]

M6 x 1.5.  If M6 is too small.... zip ties are ok!!

[Ardent]

or forgo the nappies altogether.

I know thats not the intention but....

[Captain Vimes]

Zip ties don't rust and are easy to fit/remove..