Small Block Engine Mount Bolt Sizes

[peester]

Hi, just a quick n easy one - m12 x1.75? if one was to buy new bolts to mount smallblock engine..?

deffo M12 just cant remember pitch.. 1.5?

[AlexW]

The ones going into the block? There M10, not 100% sure on pitch, bag of them I've got here don't say.

[Iain]

Standard pitch for an M10 bolt is 1.5 according to Wikipedia and a few other sources.

[novasrikev]

Standard pitch for an M10 bolt is 1.5 according to Wikipedia and a few other sources.

but thats not what he is asking

[Iain]

What I was saying is I believe they are M10 standard pitch bolts. I.e. M10x1.5. I believe Alex bought his bag from Screwfix which will won't be fine thread or anything weird.

[peester]

Oh its m10 not m12.. And 1.5mm thread we reckon?

[AlexW]

Yep, and as iain says, mine were a bag from screwfix so most likely are 1.5.