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View Full Version : Atnn Fast Ed/others Specs on 15mm Water Pump bolt?



NorthrnSCownr
02-14-2005, 08:03 PM
Does anyone know thread pitch and grade?
Thank you,
Tom

NorthrnSCownr
02-16-2005, 07:54 AM
bumpy.... any ideas?

fast Ed
02-16-2005, 10:32 AM
Hi Tom

By 15 mm, I'm assuming that you mean the size of the head of the bolt. The thread is going to be 8 mm coarse thread, which is 1.0 pitch I believe. The Ford hardware catalogue doesn't show the grade for that one, but it may be marked on the head of some of the other pump bolts. 8.8 or 9.8 hardness should be fine.


cheers
Ed N.

NorthrnSCownr
02-16-2005, 10:54 AM
:)
Thanks Ed, just what needed to know. Much appreciated!
Tom

ss_scuba
02-16-2005, 07:25 PM
Umm wouldn't the coarse thread for an 8mm bolt be 1.25? I think the medium thread is 1.0. That's what I was told while I was recently buying some intake manifold and exhaust manifold bolts.

fast Ed
02-17-2005, 10:27 AM
Yes, I think you're correct about that ... my mistake. :o

cheers
Ed N.

NorthrnSCownr
02-17-2005, 11:01 PM
Thank you for the affirmation. I still havent had a chance o get a new one...(work and weather!!)
Now o just get that broken bolt out of there! :mad:
Tom