Flange bolts - where to buy?

[psyguy]

i'm wondering if anyone knows where to buy stainless steel flange bolts (M6 in particular), in auckland or anywhere else if they want to ship
also need M10 flange nuts, fine thread, stainless

i tried the following places in auckland with no luck whatsoever
anzor fasteners (they claim the nz's largest stainless selection)
atom fasteners
edl fasteners
the bolt shop

cheers

[Madness]

Wurth do a range of OEM fasteners, far from cheap. Talk to Motu?

Edit;
M10 Flange Nuts = Easy
Stainless = Umm, Maybe....
Metric Fine (M10x1.25) = Oooh, possibly...
Metric Fine (M10x1.0) = Yeah, right!

Combination of the 3 = If you find them in Enzed you should buy two Lotto tickets the same day!

[jonbuoy]

If none of those guys don't have them you might be outta luck in NZ -maybe Auckland Engineering Supplies (AES)?

[MaxB]

You might give Blackwoods Paykels a try. Look at :

www.blackwoodspaykels.co.nz

for your nearest stockist. One thing is that you have to know exactly what you want with them 'cos they may not know. Sometimes you have to wait if its not stocked but they have always come through with what I need.

There is an engineering supply shop at the roundabout on Cavendish and Lambie Drive in Manukau City. They know their stuff. Cant remember the name. I'll have to get back to you.

[MaxB]

Its

Grossman Twigg Engineering Supplies
28 F Lambie Dve
Manukau City
0-9-262 1287

Best
Max B

[psyguy]

tried wurth today
the website looked promissing but the answer was disapointing - no flange bolts or fine threaded flange nuts

paykels phone number goes straight to the fax machine...

will try later

[psyguy]

Grossman Twigg Engineering Supplies
28 F Lambie Dve
Manukau City
0-9-262 1287

rang them today
they prety much went "you need what?!" and suggested "steel masters"
rang them too, but no luck

i probably need to start looking overseas

[vifferman]

Flange bolts? Sounds familiar, but what do you need them for (what application)?

[Motu]

Why stainless,why not the real deal? Flanges are usually retained by studs and nuts,and this is the best way to go.The material used for exhaust studs is high quality,made for the job.Before putting any cyl head or other component into the scrap we removed all studs and filed then in the ''stud bin''.Any broken or stripped studs were replaced from there.I had dozens and dozens of them,but sold my shop a couple of weeks ago,tough bickies.Go to a cyl head repair shop (some guy on here works at one?),they will have heaps too.

[Ixion]

If it's for an exhaust fitting, you don't want stainless. Heat expansion rate is wrong. What Mr Motu said.

[Fooman]

Why stainless,why not the real deal? Flanges are usually retained by studs and nuts,and this is the best way to go.The material used for exhaust studs is high quality,made for the job.Before putting any cyl head or other component into the scrap we removed all studs and filed then in the ''stud bin''.Any broken or stripped studs were replaced from there.I had dozens and dozens of them,but sold my shop a couple of weeks ago,tough bickies.Go to a cyl head repair shop (some guy on here works at one?),they will have heaps too.

Aren't flange bolts bolts with a flange built into the head (like an in-built washer)? Used for things like bolting brake discs to wheels. I'm still looking for flange head socket head machine screws - OEM was outta stock for what I wanted.

Cheers,
FM

[Fooman]

If it's for an exhaust fitting, you don't want stainless. Heat expansion rate is wrong. What Mr Motu said.

It depends - what if the exhaust is stainless?

The real question is "is it ferritic or austenitic" - part of my work has been to behold the power of austenitic steel (e.g. some stainless steels) in chewing up expensive plant when it gets hot...

Cheers,
FM

[Motu]

He hasn't said what he want them for....I presumed when he said flange he meant exhaust flange,which is the only common flange on a motorcycle (I presume it is a motorcycle he's working on) If he's talking a bolt or nut like your picture with a built in washer (often they are serrated and act as a spring washer),then again they are OE,made for a particular application on the vehicle.Perhaps a full explanation of what is wanted and intended use would help,but not often supplied in help requests.

[Ixion]

Aren't flange bolts bolts with a flange built into the head (like an in-built washer)? Used for things like bolting brake discs to wheels. I'm still looking for flange head socket head machine screws - OEM was outta stock for what I wanted.

Cheers,
FM

Wouldn't brake disk retaining bolts be high tensile ?

[Max Preload]

What is the obsession with stainless fasteners? Sure, they look pretty so reserve their use for bits you want to look pretty but don't have any real function.

Stainless fasteners are inevitably 316 grade. Threads gall and aluminium housings into which they're threaded, corrode. Stainless fasteners also fatigue and break - just great for brake master cylinder mounts... NOT!

For an exhaust bolt the absolute last material you want is stainless! 316 can't handle the heat cycling - you need a duplex stainless for that. And when the time comes to remove it it's sure to neck and snap.

[Ixion]

Yes. Heat cycling. That's what I was thinking of, not expansion rate.

[psyguy]

Flange bolts? Sounds familiar, but what do you need them for (what application)?
all the bolts on my engine are flange bolts (except for the side covers), and stainless -it's a 1980 gs 850 (that i'm rebuilding in another threadhere)
i snapped a few trying to correctly torque them and thought i should replace them with the same type bolt

[psyguy]

Aren't flange bolts bolts with a flange built into the head (like an in-built washer)? Used for things like bolting brake discs to wheels.

yup, that's what i'm after, bolts like on your photo, that are wider at the head base, all the bolts on my engine are like that (the gs850 that's appart, in another thread here), and also the nuts that hold down the block and the head

sorry if that wasn't clear from the beggining, i thought that's what a flange bolt meant and didn't know there were other meanings

why stainless? because that's what the originals seem to be. not?
a few of the nuts were replaced with ordinary steel nuts and rusted so much that i ended up undoing the whole head-holding-down stud before being able to remove the nut from the stud...

[Ixion]

Doubt that head retaining bolts would be bog 316 stainless. They're usually a very specific grade of steel, designed to stretch just the right amount under the specified torque. Not quite as specific as bigend bolts, but getting up there. I'd be very hesitant to replace top end retaining bolts or studs with anything other than the kosher article. If I had to cos the genuine thing wasn't available, I'd got for a high tensile steel item, and if necessary use a separate washer.

[psyguy]

Doubt that head retaining bolts would be bog 316 stainless. They're usually a very specific grade of steel, designed to stretch just the right amount under the specified torque. Not quite as specific as bigend bolts, but getting up there. I'd be very hesitant to replace top end retaining bolts or studs with anything other than the kosher article. If I had to cos the genuine thing wasn't available, I'd got for a high tensile steel item, and if necessary use a separate washer.

cheers. i'm not saying it's 316 but it looks like stainless and definitely doesn't rust (and my knowledge is really limited here)
anyhow, do you know where i can find M10 fine thread high tensile nuts?

[Ixion]

Hm. The Suzuki parts fiche appears to show ordinary long studs from crankcase throuh the barrel and head, with a washer and nut on the top. Usual stuff. Nuts studs and washers still available ex Suzuki, nuts about 2 bucks US studs 3 or 4 bucks. Reckon if you talked nicely to the guys at Colemans they'd order them for you.

Maybe some previous owner tried to get pretty ?

EDIT: there's what looks like a dome head nut and washer on the outside studs, still listed about $5US. And a couple of smaller bolts that go somewhere , also still listed.

[Motu]

Japanese M10 theads aren't ISO,they will need to be sourced OE.I have so many nuts and bolts salesmen come in and say they can do any metric bolt there is.So I hand them any randomly picked Japanese M10 bolt - ''NO problem Sir,we have plenty of those!''.They don't bother to come back,but just ring up saying they can't do them.Go to PickApart and scrounge around,or change tack - cadnium plate steel nuts and bolts,it's fairly cheap.

[Max Preload]

Here's a good list of finishes that I use for reference.

http://www.allmetalcorp.com/htm/pg8_6_00.htm

[pete376403]

GS head nuts will be steel (probably grade 8 or better but steel) the acorn nuts are chromed, noit stainless.
The factory service manual has a table of all the nuts and bolts and their material or grade, I could post this info if required (don't know if the Clymer or Haynes manuals will have this)

[Madness]

Japanese M10 theads aren't ISO,they will need to be sourced OE.

I've struck a few Suzuki OEM fasteners that don't match any standard thread form. I've often thought it's the Japs way at getting back at the west for the war. The Eyeties are pretty good at it too, although they take a different tack and use ISO standard M7 & M11, just for a laugh!

[psyguy]

GS head nuts will be steel (probably grade 8 or better but steel) the acorn nuts are chromed, noit stainless.
The factory service manual has a table of all the nuts and bolts and their material or grade, I could post this info if required (don't know if the Clymer or Haynes manuals will have this)

mate, that would be great, my haynes manual doesn't have it

[psyguy]

Here's a good list of finishes that I use for reference.

http://www.allmetalcorp.com/htm/pg8_6_00.htm

very informative, thank you

[Max Preload]

Unfortunately being the shithole backwater NZ is, most of them will not be available retail but even if they are you'll actually struggle to find out which ones any particular company can supply as the counter staff aren't the most informative, and the reps aren't much better.

[Max Preload]

I've struck a few Suzuki OEM fasteners that don't match any standard thread form. I've often thought it's the Japs way at getting back at the west for the war. The Eyeties are pretty good at it too, although they take a different tack and use ISO standard M7 & M11, just for a laugh!

In what way are they not ISO/DIN compliant? I don't think there is a JIS standard for fasteners. The 'eyeties' would be DIN for sure.

Here's one I use for thread reference:
http://www.gewinde-normen.de/en/index.html

[Madness]

In what way are they not ISO/DIN compliant?

I've struck a few OEM threads on Suzuki's (in a previous sales role) where the pitch was far finer than ISO fine pitch, can't remember any specific details but a sump-plug comes to mind that was something like M14 x 0.75. Weird shit like that would crop up from time to time, always fun trying to explain to customers that they couldn't buy what was required.

[Ixion]

In what way are they not ISO/DIN compliant? I don't think there is a JIS standard for fasteners. The 'eyeties' would be DIN for sure.

Here's one I use for thread reference:
http://www.gewinde-normen.de/en/index.html

Arrggghhh . I'd successfully managed to forget that 'orrible 'orrible ultra super fine special can't ever get anything that matches it sewing machine thread form. Now I've been reminded about it, the nightmares will start again. Arrgghh :brick:

[Pixie]

cheers. i'm not saying it's 316 but it looks like stainless and definitely doesn't rust (and my knowledge is really limited here)
anyhow, do you know where i can find M10 fine thread high tensile nuts?

Thrifty Auto supplies - 420 7127
Parakai
Have a good range of Japanese metric fine (1.25 mm pitch ) plated fasteners.
Anzor fasteners do stainless exclusively
Google em

[Motu]

ISO threads follow in effect the UNF and UNC threads,which were closely related to the American Fine and Course threads,and BSW and BSF....in so far as for a given bolt size you have a fine or coarse thread for different materials and applications,the head sizes relate to the SAE UNF & UNC as well.There is only one metric thread form,60 degrees,same as SAE.It's just that the Japanese use many different pitches...and I have found suppliers just don't stock them.

[Pixie]

ISO threads follow in effect the UNF and UNC threads,which were closely related to the American Fine and Course threads,and BSW and BSF....in so far as for a given bolt size you have a fine or coarse thread for different materials and applications,the head sizes relate to the SAE UNF & UNC as well.There is only one metric thread form,60 degrees,same as SAE.It's just that the Japanese use many different pitches...and I have found suppliers just don't stock them.
see my previous post

[Motu]

Tell their rep to go to every car or bike workshop in the country,if they really can supply then they have captured the market.But they have never been to see me,or if they did they didn't have what I wanted.It's in their court - if they have the product get out and sell them.

[psyguy]

well guys, you really got me confused on what i should or should not use as engine head nuts so i stopped that anyway futile search for the new nuts and went to the wreckers and sourced out M10 nuts from them, of a gs suzuki, so i guess everything should be sweet now, no worries over the right material composition and correct thread and nut design (flange)...

or maybe not...?

[pete376403]

Here are the tightening torque figures for bolts on the GS850. I thought the table of materials was bigger but I guess not - they are either grade 4 or grade 7.

BTW lots of useful info about GS bikes at www.thegsresources.com

[Motu]

So you wanted cyl head nuts? Might of save 3 pages of drivel if you had of put that in your first question.

[psyguy]

Here are the tightening torque figures for bolts on the GS850. I thought the table of materials was bigger but I guess not - they are either grade 4 or grade 7.

BTW lots of useful info about GS bikes at www.thegsresources.com
thanks heaps for this

haynes manual has most of the torque settings, but not all, and not nicely presented in a table like what you posted

interestingly, many nuts on my engine are stamped with number 6 and there is no mention of that grade in your table (perhaps replaced on 1980 model)?

cheers

[psyguy]

So you wanted cyl head nuts? Might of save 3 pages of drivel if you had of put that in your first question.

oh, forgive me for being so slack:dodge:
i'm just a beginner here, but you're right i should have known better

[FROSTY]

dude--try Manufactured suppliers ltd

[Anzor Fasteners]

Hi there,

It's Richard here from Anzor Fasteners. I have only just discovered this query, so you may have already found some Flange Bolts, but if you haven't, I suggest you try The Boltholder in Matamata on 07 881 9180. The smallest they do is M8, and they are in Zinc. I have done some research into the availability of stainless flange bolts, and they aren't available in New Zealand, and we don't know of a supplier overseas who could help, so Zinc may be the best option.

If you really want a stainless look, you could try a Hex Bolt or Button Head Socket screw and washer. For our range of socket screws see: http://www.anzor.co.nz/?t=24&PCT1=23

Best of luck,
Richard

[psyguy]

Hi there,

It's Richard here from Anzor Fasteners. I have only just discovered this query, so you may have already found some Flange Bolts, but if you haven't, I suggest you try The Boltholder in Matamata on 07 881 9180. The smallest they do is M8, and they are in Zinc. I have done some research into the availability of stainless flange bolts, and they aren't available in New Zealand, and we don't know of a supplier overseas who could help, so Zinc may be the best option.

If you really want a stainless look, you could try a Hex Bolt or Button Head Socket screw and washer. For our range of socket screws see: http://www.anzor.co.nz/?t=24&PCT1=23

Best of luck,
Richard


hi there
thanks for the info
this is an old thread though and i have sorted my problem
cheers
ps: i know now, no stainless flange bolts in nz... unless you want 10000 pieces...