engine and drivetrain Tip: Cheap Bolt Source

[bnam]

As part of my driveshaft rebuild/reinstall, I planned to put in all new hardware.  The $8+/per bolt on the 8 flexjoint bolts caused me to consider reusing the old ones.  But luckily, I found a seller on ebay selling the bmw-spec bolts (by verbus) for $2.99 each plus free shipping.  Bought a couple to check them out and now ordered the remaining.

Byas

Edited January 16, 2014 by bnam

[BhamMax]

Please share the ebay seller/store name.

Thanks,

Scott

[bnam]

http://www.ebay.com/itm/BMW-DRIVESHAFT-FLEX-JOINT-BOLT-2002-2002Tii-320i-E21/261199062655?_trksid=p3693.m2452&_trkparms=aid%3D333005%26algo%3DRIC.FIT%26ao%3D1%26asc%3D265%26meid%3D4149095537069253364%26pid%3D100102%26prg%3D1140%26rk%3D1%26rkt%3D1%26sd%3D261199062655%26

 

socaliap

Edited January 16, 2014 by bnam

[peterschop]

They are selling as new but the one in the picture looks like a used bolt with rust and is the only one is left. You might as well use your old ones. As for me, I'm buying new.

[bnam]

It does look like that.  That's why i only ordered a couple at first.  The ones I got were new.  So took a risk on 6 more.  .

 

IE does sell a whole kit for $16 -- though the bolts don't look like oem spec as the shoulder is shorter with more threads.  In the oem design the guibo and the flange sit on the shoulder mainly with the threads only protruding out back.  But perhaps these work just as well anyway.

 

B

[Hans]

Home Depot, Lowes, etc. have metric bolts. You need to replicate shape and grade, but worth a look. I got boxes of 50 for common size nuts, washers, etc. from an industrial fastener shop. Another good place to look.

[HBChris]

www.belmetric.com has everything you need.

[Rocan]

www.mcmaster.com for all of your bolt needs and much, much more. I don't buy hardware from anywhere else. 

[DaHose]

I have a Fastenal retail store in my town.  They are my #1 go-to place for ANY threaded fastener I might need.  I buy most everything in SS, but they can get things in a variety of materials and coatings.  You can shop online with them too.

 

http://www.fastenal.com

 

Jose

[bnam]

Yes, all good sources of std metric hardware.  None carry this specific OEM spec (61mm length, with the right shoulder length).  The OEM spec bolts all appear to be in the $8+/per range - if one was fussy about OEM spec.

[HBChris]

M10x60 grade 10.9 $1.06

https://www.belmetric.com/bh10x60-hex-bolt-109-p-2387.html?cPath=506_509_398

[Hans]

I doubt very much BMW was making those things in the factory.

[Cru Jones]

M10x60 grade 10.9 $1.06

https://www.belmetric.com/bh10x60-hex-bolt-109-p-2387.html?cPath=506_509_398

 

I used to get my bolts from boltdepot.com when I lived on the East Coast. They have that same bolt for only $.68.

 

http://www.boltdepot.com/Product-Details.aspx?product=6753

[AceAndrew]

Yes, all good sources of std metric hardware.  None carry this specific OEM spec (61mm length, with the right shoulder length).  The OEM spec bolts all appear to be in the $8+/per range - if one was fussy about OEM spec.

 

No need to be fussy for any strength reasons, the std size 10.9's have proven themselves over and over.

Edited January 16, 2014 by AceAndrew

[LarsAlpina]

Shoulder length does not matter as shoulder isn´t really involved in a screw connection. Neither guibo nor flanges do really touch the shoulder, only compression joint (is that right in english?) between screw head, nut and things in between.

 

Repair guide says 6,4 to 7,1kpm thightening torque wich equals 63 to 69Nm. With that for thread M10 a 10.9 screw is enough. Take standard 60mm length, missing 1mm will not matter (and that is the only thing that is special for the BMW original screws).

 

Regards, Lars.