Hi,
If any body has any of these torx bolts, new, perhaps leftover from a diff swap and just "lying around", I would be interested in buying them from you. New, they range in price from abt 7 to 12 USD a piece ! Getting ready to swap out my differential.
Thanks!
Scott
1991 BMW 850i
2007 Honda Odyssey
2017 Hyundai Elantra
2013 Honda CRV
2003 MotoGuzzi 850 Jackal
I have no non-torx versions laying around new from BMW. I bought these for a diff swap I never did. As Olin pointed out in his excellent swap how to thread, the ss part number is the non torx version.
What "thumbs up" really means
I went this route a couple weeks ago and ended buying new 10.9 allen headed screws at a hardware store ( 0,55€ each.. )...
I have read Olin's excellent thread but I must have missed something! The only thing I do not have (besides brains ) is money and the Torx bolts!
What is the "ss part number" that you are referring to?
So, are you saying that you have 12 new non torx versions of the bolts and that you would like to sell them? Thanks for clarifying!
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Thanks I will look into this!
1991 BMW 850i
2007 Honda Odyssey
2017 Hyundai Elantra
2013 Honda CRV
2003 MotoGuzzi 850 Jackal
+1 on 10.9 allen bolts.
I actually used bumax109 stainless bolts. Equivalent to 10.9 but will never rust.
I guess my question is if they are heat treated the same way as the OEM versions? I know this matters for studs on the heads and so forth.
I know this is posted on Ebay, but it is still a good read. http://www.ebay.com/gds/Stainless-Bo...1623345/g.html
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I messed up, you are already using the right part number of 33211227279. I do indeed have 12 of them that I am willing to part with. I paid $9.52 a piece at a discount dealer. ECStuning has them in a pack of 15 for $162.60. I would be happy to get of them for close to what I paid.
What "thumbs up" really means
The bolts sold on the EBAY link posted earlier end with the term "NS3 Coat." I am not a metallurgist but I believe this may refer to "Nickel-silver" which is not actually Nickel or Silver. Wikipedia is amazing. I know more about ASTM standards for bolts and nuts than I ever cared to know about! Worst thing that could happen with 10.9 grade that were not coated is they would rust a lot more quickly than the coated bolts. I'll checkout the bumax109 bolts. They maybe equivalent. 7 bucks a bolt ain't too bad for bolts that would appear to meet OEM spec.
1991 BMW 850i
2007 Honda Odyssey
2017 Hyundai Elantra
2013 Honda CRV
2003 MotoGuzzi 850 Jackal
The bumax stuff are very good, typically used for offshore drilling, ocean racing, paper mills and generally harsh environments. The 88 line is equivalent to metric 8.8 and the 109 for the 10.9.
Assuming quality production and certification, and that's a big assumption, 10.9 is 10.9 is 10.9. It's a metallurgical rating. For our usage the only differences are in the plating if applied. Obviously I'm simplifying in regards to thread fit, etc
Cadmium is generally best but now banned unless you're in aerospace or military. Aluminum alloy cladded ones are the next best thing but hard to find in retail quantities.
That leaves us zinc, which is pretty good. Go for yellow zinc, slightly better than clear zinc.
Any aftermarket source? BMW is asking for too much with abt. $17/piece torx screw M10X50, OE Numbers 33211227279, old # 33211227073
Non torx version would also be no problem as long as the size and the metallurgical rating is same/similar, also the color = zinc coated would be o.k.
In German they call them RIPP-Schrauben , Flanschschrauben mit Sperr-Rippen unter dem Flansch.
These original BMW bolts in that size are no longer available in the market and what is on the market is remaining stock, and that is why the prices are so high.
So we have to buy aftermarket, there are bolts available in these sizes but usually without these lock ribs = Sperr - Rippen under the head. That is in general no problem if we use lock washers. Torx or hex head does not matter.
Shogun tricks and tips for the E32 series are HERE!
My 2c...
It depends on what the owner wants to achieve....
1. If the owner just want to make it safe and make it work, I have no issue reusing the bolts if they are not "too chewy". Fact is the factory directions are there to achieve service quality parity amongst dealerships with mechanics of varying degrees of skill and care (and dare I say intelligence). Looking at the factory torque spec the fasteners are nowhere near TTY so the only reason to specify replacement is because the factory new bolts are "micro encapsulated" i.e. pre-applied Loctite. So if one follows good practice, clean the threads on both sides and use the proper Loctite, I don't see an issues. COUNTLESS vehicles are on the streets with reused bolts for the same reason.
1.1 If the bolts are chewed up, an identically graded bolt (e.g. 10.9) of non-suspect origin/supplier is fine. Many studies have conclusively proven with exception of nord lock, pretty much all mechanical thread locking mechanisms are junk so don't waste time looking for the unicorn serrated bolts, trust in Loctite. The sh1t took us to the moon and back, its good enough for you.
2. You are a "concourse" guy - good luck looking for and paying OE bolts. If you have a deep pocket you can always commission a batch from kamax, boesner, verbus or other quality manufacturers etc.
3. You're a some is good, more is better and too much is just enough kind of overkill guy - Use bumax109, nord lock and Loctite. Guaranteed to outlast you.
If you're in the US finding decent metric fasteners could be a pain. Fastenal is ok but no where as nice as McMaster-carr(*) stuff. also heard good things from bel-metric.
(*) Used to order from them until they changed their policy and decided everyone outside (or suspected to be outside) of USA are terrorists and will not take your order (yeah seriously).
A normal hex bolt will not fit properly, here shown on an E32 750 driveshaft posted on a German E32 forum.
I moved a copy of this thread from the E31 forum to E32 forum, as these bolts are also used on E32.
http://www.realoem.com/bmw/enUS/part...&q=33211227279
33211227279 Torx screw M10X50 From:09/01/1990 To:- Weight:0.030 kg
Supersedes:
33211227073(09/01/1989 — 01/17/2001)
Part 33211227279 was found on the following vehicles:
•3' E30 (01/1985 — 02/1994)
•3' E36 (11/1989 — 12/1998)
•5' E34 (07/1987 — 06/1996)
•7' E32 (11/1986 — 08/1994)
•7' E38 (07/1993 — 07/2001)
•8' E31 (07/1989 — 05/1999)
•Z1 Roadster (07/1988 — 06/1991)
•BMW Classic Motorsport (01/1928 — 09/1932)
Mfg Part #33211227279 ECS Part #ES#56895 Brand Genuine BMW ..::Note:::..This product is no longer available. Previous Revisions 33211227073
https://www.ecstuning.com/b-genuine-...t/33211227279/
Last edited by shogun; 09-14-2016 at 08:42 PM.
Shogun tricks and tips for the E32 series are HERE!
Here we have something much cheaper, 2mm longer, BMW Torx Screw With Ribs (M10X52 Zns3) Chrome-free CR(VI)- Genuine BMW 26117526322 https://www.ecstuning.com/b-genuine-...t/26117526322/
Price each: $3.79 for example at FCP EURO http://www.realoem.com/bmw/enUS/partxref?q=26117526322
Shogun tricks and tips for the E32 series are HERE!
Thanks for this alternative! The proper bolts are $14-$26 a piece now. I've got 12 M10 E-TORX bolts from an E36 M3 laying around, but they seem a touch short for the application. So no reported length problems with the cadmium plated bolts you linked that are 52mm instead of 50mm? Getting ready to put the E32 3.15LSD into my E31.
Also found these bolts from a MINI steering rack, which also seem workable: BMW part number 32106774042
Last edited by Chamberlin; 02-24-2018 at 12:15 PM.
2006 R53 JCW (British Racing Green) - 1994 E31 840Ci 6spd (AVUS Blue)
2021 F56 JCW (Rebel Green) - 2000 E38 740i Sport (Titanium Silver)
2017 F26 X4 M40i (Carbon Black) - 2007 E91 328iT (Deep Green)
2012 E82 135i M Sport (Marrakesh Brown) - 2015 E84 X1 (Cashmere Silver)
2005 E53 X5 3.0i Sport (Kalahari Beige) - 2000 E36/7 M Roadster (Oxford Green)
2000 E38 740i Sport (Oxford Green) - 1999 E36 M3 Coupe (Fern Green)
1995 E31 840Ci Canadian (Oxford Green) - 2000 E36/8 M Coupe (Oxford Green)
2004 E46 330Ci (Oxford Green) - 2001 E36/8 Z3 3.0i Coupe (Oxford Green)
2002 E39 525i Sport (Oxford Green) - 2002 E36/7 M Roadster (Oxford Green)
2001 E53 X5 3.0i Sport (Oxford Green) - 2007 E63 M6 (Silver Grey)
1995 E31 840Ci (Oxford Green) - 2006 E86 M Coupe (Sepang Bronze)
2001 E39 530i Sport (Aspen Silver) - 2009 E92 M3 (Space Grey)
2001 E38 740i Sport (Sahara Beige) - 2008 E92 M3 (Melbourne Red)
2000 E38 740i Sport Canadian (Sahara Beige) - 1997 E31 850Ci (Jet Black)
Shogun tricks and tips for the E32 series are HERE!
2006 R53 JCW (British Racing Green) - 1994 E31 840Ci 6spd (AVUS Blue)
2021 F56 JCW (Rebel Green) - 2000 E38 740i Sport (Titanium Silver)
2017 F26 X4 M40i (Carbon Black) - 2007 E91 328iT (Deep Green)
2012 E82 135i M Sport (Marrakesh Brown) - 2015 E84 X1 (Cashmere Silver)
2005 E53 X5 3.0i Sport (Kalahari Beige) - 2000 E36/7 M Roadster (Oxford Green)
2000 E38 740i Sport (Oxford Green) - 1999 E36 M3 Coupe (Fern Green)
1995 E31 840Ci Canadian (Oxford Green) - 2000 E36/8 M Coupe (Oxford Green)
2004 E46 330Ci (Oxford Green) - 2001 E36/8 Z3 3.0i Coupe (Oxford Green)
2002 E39 525i Sport (Oxford Green) - 2002 E36/7 M Roadster (Oxford Green)
2001 E53 X5 3.0i Sport (Oxford Green) - 2007 E63 M6 (Silver Grey)
1995 E31 840Ci (Oxford Green) - 2006 E86 M Coupe (Sepang Bronze)
2001 E39 530i Sport (Aspen Silver) - 2009 E92 M3 (Space Grey)
2001 E38 740i Sport (Sahara Beige) - 2008 E92 M3 (Melbourne Red)
2000 E38 740i Sport Canadian (Sahara Beige) - 1997 E31 850Ci (Jet Black)
I'm not sure of the thread pitch of the OE bolts, but one of these might work:
https://www.fastenal.com/products/details/1139623?r=~%7Ccategoryl1:%22600000%20Fasteners%22% 7C~%20~%7Ccategoryl2:%22600039%20Sockets%22%7C~%20 ~%7Ccategoryl3:%22600040%20Socket%20Cap%20Screws%2 2%7C~%20~%7Csattr01:%5EMetric$%7C~%20~%7Csattr04:% 5E%22M10%20-%201.5%22$%7C~
https://www.fastenal.com/products/details/35760?r=~%7Ccategoryl1:%22600000%20Fasteners%22%7C ~%20~%7Ccategoryl2:%22600039%20Sockets%22%7C~%20~% 7Ccategoryl3:%22600040%20Socket%20Cap%20Screws%22% 7C~%20~%7Csattr01:%5EMetric$%7C~%20~%7Csattr04:%5E %22M10%20-%201.5%22$%7C~%20~%7Csattr04:%5E%22M10%20-%201.25%22$%7C~
I believe the pitch is standard M10x1.5, but I think the idea was to get away from hex head socket cap screws, hence the factory change to E-TORX for the torque needed here.
2006 R53 JCW (British Racing Green) - 1994 E31 840Ci 6spd (AVUS Blue)
2021 F56 JCW (Rebel Green) - 2000 E38 740i Sport (Titanium Silver)
2017 F26 X4 M40i (Carbon Black) - 2007 E91 328iT (Deep Green)
2012 E82 135i M Sport (Marrakesh Brown) - 2015 E84 X1 (Cashmere Silver)
2005 E53 X5 3.0i Sport (Kalahari Beige) - 2000 E36/7 M Roadster (Oxford Green)
2000 E38 740i Sport (Oxford Green) - 1999 E36 M3 Coupe (Fern Green)
1995 E31 840Ci Canadian (Oxford Green) - 2000 E36/8 M Coupe (Oxford Green)
2004 E46 330Ci (Oxford Green) - 2001 E36/8 Z3 3.0i Coupe (Oxford Green)
2002 E39 525i Sport (Oxford Green) - 2002 E36/7 M Roadster (Oxford Green)
2001 E53 X5 3.0i Sport (Oxford Green) - 2007 E63 M6 (Silver Grey)
1995 E31 840Ci (Oxford Green) - 2006 E86 M Coupe (Sepang Bronze)
2001 E39 530i Sport (Aspen Silver) - 2009 E92 M3 (Space Grey)
2001 E38 740i Sport (Sahara Beige) - 2008 E92 M3 (Melbourne Red)
2000 E38 740i Sport Canadian (Sahara Beige) - 1997 E31 850Ci (Jet Black)
Any bolt even a measly grade 5 bolt will have enough tensile or shear strength for what is required in this application, just guessing arbitrarily, by at least by a safety factor of 1000x. Just throwing out options for those who do not what to spend $15+/per bolt from BMW
Last edited by whiteghost1; 02-27-2018 at 01:29 AM.
Got the bolts for the MINI steering rack which will work for the output shafts....
2006 R53 JCW (British Racing Green) - 1994 E31 840Ci 6spd (AVUS Blue)
2021 F56 JCW (Rebel Green) - 2000 E38 740i Sport (Titanium Silver)
2017 F26 X4 M40i (Carbon Black) - 2007 E91 328iT (Deep Green)
2012 E82 135i M Sport (Marrakesh Brown) - 2015 E84 X1 (Cashmere Silver)
2005 E53 X5 3.0i Sport (Kalahari Beige) - 2000 E36/7 M Roadster (Oxford Green)
2000 E38 740i Sport (Oxford Green) - 1999 E36 M3 Coupe (Fern Green)
1995 E31 840Ci Canadian (Oxford Green) - 2000 E36/8 M Coupe (Oxford Green)
2004 E46 330Ci (Oxford Green) - 2001 E36/8 Z3 3.0i Coupe (Oxford Green)
2002 E39 525i Sport (Oxford Green) - 2002 E36/7 M Roadster (Oxford Green)
2001 E53 X5 3.0i Sport (Oxford Green) - 2007 E63 M6 (Silver Grey)
1995 E31 840Ci (Oxford Green) - 2006 E86 M Coupe (Sepang Bronze)
2001 E39 530i Sport (Aspen Silver) - 2009 E92 M3 (Space Grey)
2001 E38 740i Sport (Sahara Beige) - 2008 E92 M3 (Melbourne Red)
2000 E38 740i Sport Canadian (Sahara Beige) - 1997 E31 850Ci (Jet Black)
Last edited by Budget M3; 03-15-2018 at 06:18 PM.
Here is a link to the correct size with all of the options for coatings—black, zinc, stainless and even blue!
https://www.fastenal.com/products/fa...10 - 1.5"$%7C~
Last edited by Budget M3; 03-15-2018 at 09:58 PM.
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