Supercharger mounting bolts.

[rml2711]

Can anyone assist with the dimensions of the 19mm headed bolt that secures the charger to the mounting bracket just below the pulley please?
My bolt disappeared on the A3 one night ( possibly left loose after previous work) Genuine part is now obsolete......
     Thanks for any help.

[Jezza-7]

It might be an M12x50 (19mm socket?) Part number N 0104912

If i remember correctly its bigger than the pulley bolt which is M10x28 (17mm socket)

[rml2711]

Excellent, thank you very much. That'll give me something to look for.

[olly s]

Does anyone have the size for the longest bolt at the top of the charger please?