Fan bolts.

[Classiccars]

Hi could someone please advise the size of the 4 bolts holding .the two blade fan to the water pump please as may need some.

[geoberni]

I believe the data you are looking for, and many others sizes, can be found on this page: viewtopic.php?p=491248#p491248

[Classiccars]

Quarter inch thank you.Any idea of body length of the bolt please.

[philthehill]

1/4" UNF x 3/4" length should see you right.

[geoberni]

Well it's part number is HZS0405 and it's actually a screw because it's fully threaded.
Searching for that number seems to indicate that it's 5/8", which sounds about right.

[oliver90owner]

I would advise the poster to measure the threads on the pump hub, add the thickness of the fan and any washers used then buy set-screws of appropriate length. It’s not rocket science.

[Classiccars]

Wise words from all rhanks

[les]

3/4 inch long set screw

[geoberni]

I guess either 5/8" or 3/4" will do.
I just spent a few minutes taking one out of mine, and it's 5/8", but ESM & Moss both offer a 3/4" as the spare.
The extra 1/8" won't do any harm as there's space there before it fouls on the pump body....

[Classiccars]

Great advice as ever thank you all.

[Classiccars]

Thanks all very much.