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Thread pitch for 10.9 bolt

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Old Jan 21, 2008 | 05:30 AM
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Default Thread pitch for 10.9 bolt

I would like to verify the thread pitch for a grade 10.9 bolt 10M x 110mm. I'm told that this is available only in a 1.5 pitch. This is a replacment bolt for the lower control arm/damper for a 1999 Si. 1.5 pitch nuts do not fit the stock bolts - this was a double check. Dampers are Koni Sport.

The only other options are 1 or 1.25...


Thanks
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Old Jan 21, 2008 | 06:15 AM
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Default Re: Thread pitch for 10.9 bolt (meb58)

if u go to a local ace hardware they should have all the necessary tools to help find the correct bolt
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Old Jan 21, 2008 | 06:18 AM
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Default Re: Thread pitch for 10.9 bolt (superstreet4life)

I would, but a local Ace is about 2 hours away. Not even Fastenal can help me here. ...but, I can call Ace! Thanks for shaking my feeble brain!!!
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Old Jan 21, 2008 | 09:19 AM
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Default Re: Thread pitch for 10.9 bolt (meb58)

This may or may not be of any help, so it's just FYI. I don't have the manual for the 99 Si, but I do have the one for my DA integra and it says that the LCA to subframe bolt is 10x1.25 and the LCA/damper bolt is 12x1.25. The pinch bolt is 10x1.25 and the ball joints are all 1.25 thread. I would field a guess that your bolt may be a 1.25 pitch given that it seems that Honda prefers that thread pitch for the suspension fasteners. Also, are you sure that it's 10mm and not 12mm?

HTH
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Old Jan 21, 2008 | 06:10 PM
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Default Re: Thread pitch for 10.9 bolt (meb58)

what ace are you going to thats 2 hours away? if you are in wappemgers falls my local ace hardware in mahopac has everything you need and is 30 minutes away right down the taconic. They are 10x 1.25
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Old Jan 22, 2008 | 05:30 AM
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Default Re: Thread pitch for 10.9 bolt (Crx Jimmy)

I couldn't respond until today - I'm too new.

Well I lost my pitch guage at a critical time. I bought a new one yesterday and the pitch is indeed 1.25. So, Crx Jimmy, if you have a M10 x 110 - 120mm x 1.25 in a grade 10.9, i'll come see you this weekend. I gave a range in length, but 110 is as short as we can use in this application.

The list of companies in the USA and in Europe that I have called thus far is bewildering. Nothing is available longer than 80mmm - off the shelf. I was contacted by one fellow who agreed to provide this size with an order of 50 or more. Fair enough, but at that point, we'll just buy a new swaybar.
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Old Jan 22, 2008 | 10:25 AM
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Default Re: Thread pitch for 10.9 bolt (meb58)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by meb58 &raquo;</TD></TR><TR><TD CLASS="quote">I would, but a local Ace is about 2 hours away. Not even Fastenal can help me here. ...but, I can call Ace! Thanks for shaking my feeble brain!!!</TD></TR></TABLE>

drive faster.... the best ACE is in mahopac, 30 min away....

*edit* crx jimmy beat me to it... regardless, they will not have the lower bolt long enough. hit me up on email, i had a few made that may work for you.
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Old Jan 23, 2008 | 04:50 AM
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Default Re: Thread pitch for 10.9 bolt (Rodney)

Sent you an email! Thanks for your help.
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Old Jan 23, 2008 | 07:58 AM
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Default Re: Thread pitch for 10.9 bolt (meb58)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by meb58 &raquo;</TD></TR><TR><TD CLASS="quote">
The list of companies in the USA and in Europe that I have called thus far is bewildering. Nothing is available longer than 80mmm - off the shelf. I was contacted by one fellow who agreed to provide this size with an order of 50 or more. Fair enough, but at that point, we'll just buy a new swaybar.</TD></TR></TABLE>

did you try: http://www.mcmaster.com/
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Old Jan 23, 2008 | 08:27 AM
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Default Re: Thread pitch for 10.9 bolt (UltimateTSI)

Yup! Tried all the big boys here and in Europe. M10 with 1.25 pitch grade 10.9 is available all over up to 80mm in length. It disappears from any radar screen in longer lengths at 1.25. 1.5 is availabel all over as well in long lengths, just no 1.25. Very puzzling to me.

I may just have to buy a new swaybar...
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Old Jan 23, 2008 | 09:41 AM
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Default Re: Thread pitch for 10.9 bolt (meb58)

i had them made for me from a place down county, it slips my mind whom.... anyway, i need to check my mail. i have them, and i am ~5 min from you
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Old Jan 24, 2008 | 04:48 AM
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Default Re: Thread pitch for 10.9 bolt (Rodney)

Do you want me to email my cell # so I can make arrangments to come buy these? My sone and friends say you are a famous autoXer. Your reputation preceeds you.
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Old Jan 24, 2008 | 06:20 AM
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Default Re: Thread pitch for 10.9 bolt (meb58)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by meb58 &raquo;</TD></TR><TR><TD CLASS="quote">I couldn't respond until today - I'm too new.

Well I lost my pitch guage at a critical time. I bought a new one yesterday and the pitch is indeed 1.25. So, Crx Jimmy, if you have a M10 x 110 - 120mm x 1.25 in a grade 10.9, i'll come see you this weekend. I gave a range in length, but 110 is as short as we can use in this application.
</TD></TR></TABLE>

ARP Catalog (page 81) lists them having an M10X1.25 up to a 100mm length. Although you might try calling them to see if they can make one for you in the length you need...
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Old Jan 24, 2008 | 01:51 PM
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Default Re: Thread pitch for 10.9 bolt (adrian1281)

110mm is the minimum. The idea here is to use this bolt as the the lower attachment for the swaybar endlink. So the bolt needs to be long enough to help the endlink clear all suspension components as they all move. Ideally this bolt will also give me a few more options so the the link is as upright as possible. Obviously this requires that a spacer be fit between the front side of damper and the endlink -those I can get from McMaster-carr. But I'll order those only if I find the proper bolts since the existence of such a bolt, and, its length determine the spacer size.

God I'm tired! One more hurdle and we just buy another swaybar. I like this one because the endlinks attach to a point a little farther sway from the swaybar's centerline. More mechanical leveragin theory.

In case I've not been clear, the endlink attaches to the same bolt that fastens the rear damper to the control arm - hence the need for a longer bolt.

Thanks for your help!!!
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Old Jan 24, 2008 | 02:38 PM
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Default Re: Thread pitch for 10.9 bolt (meb58)

sorry, i totally forgot about ya...

i just looked, and i have (3) 4" and only (1) 4.75". not sure you can use one bolt though. sorry. i must have used the other one for some various project...

i would like to see this swaybar setup, as i am sure i can figure out something that will work for you.
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Old Jan 24, 2008 | 03:53 PM
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Default Re: Thread pitch for 10.9 bolt (Rodney)

OK I'm lost, you mean the nut welded on the fork mount? Why not cut that nut off then just use another nut and bolt of whatever you chose. From what I understand the welded on nut is what is causing the problem for you to find that particular pitch to match.
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Old Jan 24, 2008 | 06:35 PM
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Default Re: Thread pitch for 10.9 bolt (Rodney)

Just looked through my bolt bin I have 2 10mm bolts just shy of 5 1/2" They are from some part of some honda. dont know what they came from but they are honda bolts so they should be strong enough. You can pm rodney Ill probably drop them off so he can take a look at them . I think he wants to see this bar of yours.
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Old Jan 25, 2008 | 04:57 AM
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Default Re: Thread pitch for 10.9 bolt (Crx Jimmy)

Very cool!!! Thanks for your help guys!!!. The Ground control bar is not in production, hence the difficulty with these parts. And according to Mark at GC, MSCdirect has these, but I've called three times with zero results. MSCdirect supplied the original hardware.

I'll bring the bar and all the hardware so you can see how it works. I was given your cell number - I'll call you today.

essex...I'm old and feeble, so I didn't think about that option...I actually prefer to retain the 1.25 pitch
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Old Jan 25, 2008 | 07:15 AM
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Default Re: Thread pitch for 10.9 bolt (essex)

If it becomes almost impossible to find what you are looking for, try calling ARP's Special Projects Department at 805-525-1497. Not sure what it would cost, but it's worth a try. Might be cheaper to have them make the bolts for you than redesign the bar to work with the bolts you can get, just a thought....
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Old Jan 26, 2008 | 03:57 AM
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Default Re: Thread pitch for 10.9 bolt (adrian1281)

The challenge here is cost; we have this bar. But if it doesn't work I have to make a choice between either the 22mm ITR bar or the full blown adjustable A spec 32mm bar. I have a bar very similar to that one on my 05 JCW Mini. But the Si will be in my son's hands and I'm a little worried about him keeping track of the back end. So, purchasing the 22mm, only to jump to the A spec a year later is a wee bit expensive for him.

He's intelligent, but sometimes it's a father's duty to protect his son from the same foolish mistakes he made...
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Old Jan 26, 2008 | 07:05 AM
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Default Re: Thread pitch for 10.9 bolt (meb58)

Hey not to be totally off topic. You don't happen to be Alex's father do you? I am one of Riley's friends. I have the purple civic hatch. I dont think we officially met but you stopped at Riley's house after getting parts for this Si. Once you mentioned your mini, I though it was you.
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Old Jan 26, 2008 | 07:40 AM
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Default Re: Thread pitch for 10.9 bolt (SHG_Mike)

This sounds like a very interesting swaybar setup, I dont think I've seen anything like it before... I would think that a design like that would interfere with the exhaust piping no? Maybe I'm not picturing it correctly...

Like someone had said before, if worse comes to worst, you could grind off the welded nut on the Koni and use a separate nut that will work with the available bolts. If you don't want to do it yourself im sure any muffler shop or dealership would be happy to grind a couple nuts off for a nominal fee.
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Old Jan 26, 2008 | 07:44 AM
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go to Sarjos in poughkeepsie... they have EVERYTHING nuts and bolts.
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Old Jan 26, 2008 | 08:36 AM
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Default Re: (dunkd)

Yes! I am Alec's father. right back at you! I'm trying to help Alec with the basics so that he can drive the car with peace of mind while concentrating on all of the other details he has planned. He'll be on a track soon enough...

I good friend just told me to try Sarjos! The world is much smaller than we think...

The bar won't intefere with the exhaust. Just imagine bar ends that fasten to the typical location on the lower control arm. Now imagine a bar with slightly longer bar ends that pick up the lower damper bolt - in front of the damper by about 1" hence the need for a longer bolt. It's a nice setup the adjutments are made via a slider rather holes. So the fidelity has more potential in theory.
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Old Jan 27, 2008 | 07:01 AM
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Default Re: (meb58)

The saga is over. 100mm long bolts will just barely clear the Konis and I found two suppliers on line. Thanks for all the help gentelmen!!!
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