Bolt specs and sizes

mikepday · Post by **mikepday** » Tue Jan 08, 2008 9:15 pm

I realise this is long shot but does any one know the whereabouts of a list of bolt sizes and specs for the car? specifically in this case for all the bolts attaching the front subframe to the tub and front suspension, I currently have all the front suspension steering and brakes off my car for rebuild and upgrade (I can't wait for brakes that feel like they work......Properly!) and wish to upgrade them to Stainless steel, I would like to be able to present my local bolt supplier with a list of specs and let him get on with it rather than take a bucket of rusty nuts and bolts to him and then start to measure them. Any clues would be most welcome. :?

harryetype · Post by **harryetype** » Wed Jan 09, 2008 9:04 pm

You can get bolt kits containing all the correct size for the frames, you could get one and give it to a supplier of stainless nuts and bolts.

I would would stick with new steel ones as they are stronger, just touch them in with laquer if you are concerned about them corroding.

Harry

mikepday · Post by **mikepday** » Wed Jan 09, 2008 10:39 pm

Thanks for the reply harry, I see your point on the new steel bolts but i have been told that there is a grade of stainless steel equivalent to the strength of new cold steel (or should that be mild steel?) which allows the same torque settings, the only bad thing i have heard is that stainless is generally more brittle than normal steel so tends to shear easier.(however if it is torqued correctly, is as strong, and then does not corrode within the thread pattern, would this be an issue?) In the meantime do you know of a supplier of bolt kits for the front frame etc, I could maybe contact them and discuss the various merits.
Cheers Mike.

harryetype · Post by **harryetype** » Thu Jan 10, 2008 7:33 pm

Hi

SNG Barratt sell the standard bolt kits. let me know how you get on.

Harry

morganbing · Post by **morganbing** » Thu Jan 10, 2008 8:58 pm

Hi, as Harry has replied, you can buy complete kits for the frame assembly and would proably be cheaper than buying individual sizes from your old rusty patterns.
I would not recommend changing for stainless steel as there are differing tensile strengths in the difference of materials and using on such things as stressed engine frames would not be advisable. Stainless is fine for non stressed applications such as bracketry.
Most other bolts and fixings for suspensions and brakes are generally available from most of major spares suppliers under the original part numbers from the parts catalogues.

mikepday · Post by **mikepday** » Thu Jan 10, 2008 10:52 pm

Thanks for the replies guys, I shall be on the blower to SNG in the morning..... I'll let you know the outcome.

mikepday · Post by **mikepday** » Mon Jan 14, 2008 3:38 pm

well.... a little later than promised but,

SNG says no! bolt kits are pointless as no-one wants all of them!? the only way is to trawl through their online pdf.s, or catalogue and list the part numbers, which unfortunately don't include the size specs either.

Note to self: merely reads 'Bugger!'

If anyone else has knowledge of stainless bolt tensile qualities or front frame bolt sizes and has an opinion I'd appreciate it.

Till then I best get my bolts cleaned up for measurement!

Ta, Mike.

Post by **Heuer** » Sat Mar 22, 2008 5:08 pm

Mike

A full list of tensile strengths of various bolts is available here:
http://www.fandisc.com/tti.htm

David

andyp · Post by **andyp** » Sat Mar 22, 2008 6:12 pm

Mike

Have a look on Ebay as there is a chap selling various E Type bolt kits there. Even if he isn't listing what you need at the moment it would be worth dropping him a line.

With regards stainless, yes you can get grades that compare well with regards strength but they will corrode. Top notch marine grade stainless fastenings are superb for corrosion resistance but you wouldn't want to use them in high stress situations and the price might make you wince.

Andy

christopher storey · Post by **christopher storey** » Sun Mar 23, 2008 11:26 pm

The real problem with stainless is that their tensile strength varies with temperature. In significantly cold temperatures they become very brittle and are liable to fail in shear. This makes them unsuitable for suspension mountings/fixings. Zinc or Nickel Plated fastenings are less susceptible to this and will last for many years if kept free of salt

e-bygum · Post by **e-bygum** » Mon Mar 24, 2008 12:11 am

I believe that Uryk at EType Fabs supplies a set of fasteners with his new frame rails maybe he will supply you with just the fastener kit. Might be worth asking.
Pete

vikla · Post by **vikla** » Thu Feb 16, 2012 5:16 pm

I know this post is years old but I was reseaching stuff and found this link http://www.xke-lovers.com/memberfiles/subframe.pdf

It's a document with all the details

Stuart Exelby · Post by **Stuart Exelby** » Tue Jan 12, 2016 6:01 pm

Hi - I know it's an old thread (pardon the pun!!) but does anyone know (or is there a place where I can find out) what the screw/bolt size is for the rear fixing of the seat slider on Series 1 OTS? The one which affixes the slider to the floor (rather than the slider to the seat). Mine are fairly well mullered and have stripped their threads - neither of the usual suppliers (SNGB and Manners) stock them - and were a little blunt - ie "not listed, not expecting to ever list them again, don't know the size" type of reply.... I appreciate I can fit a different screw - but would prefer to start with the right one if I can. Thanks in advance.....

Post by **mgcjag** » Tue Jan 12, 2016 6:28 pm

Hi Stuart....i think your best off looking in the knowledge base for the part no.....then there is a listing of all nuts and bolts where you use the part no to decode the bolt size.....havent tried it myself but you need the part no first......hope tbis helps

chrisfell · Post by **chrisfell** » Tue Jan 12, 2016 6:49 pm

Mine were 1/4" UNF (28 tpi). The ones I took out were phillips head. I replaced them with A2 stainless hex head.

(Having said that, one of the originals had been 'improved' by fitting a metric threaded 10mm allen head screw. Yet another PO bodge I'll have to repair at some time.)

Post by **Heuer** » Tue Jan 12, 2016 7:11 pm

Unfortunately only some fixing part numbers are made up of the code whilst others, including this bolt, just have regular BD. or C. numbers. If you find a part number that looks something like UCN113/L then the decoder in the Forum KB will tell you the exact specification.

Jaguar Nuts, Bolts and Fasteners specs: https://www.dropbox.com/s/vbkgbwl4b3tyc ... s.pdf?dl=1

Stuart Exelby · Post by **Stuart Exelby** » Tue Jan 12, 2016 7:15 pm

Hi Steve (and David and Chris) - thanks for the swift replies. Forgive me, I guess I meant to say, I have the part number - BD27546/6 - and thanks for the advice re the Knowledge Base - I'd just tried a simple search which hadn't come up with that thread. Doh!

Having said that, I am obviously very, VERY thick - 'cos I can't work out the sizing from the fastener guide - presuming that I've used the right link to the right document of course. At one stage I seem to have decoded it to mean it's 3+3/8th inch long..... which I don't think is right or I'll be digging groves into all the traffic humps round here.....! I'll keep going...... although it looks like David is suggesting I would need a different code. Ho-hum!

While I would have preferred to use the correct one, maybe I have to accept defeat and - despite this being a simple one for the usual suppliers to replicate (you'd have thought) I may have to accept using a non-standard bolt/setscrew.

Thanks again

christopher storey · Post by **christopher storey** » Tue Jan 12, 2016 7:35 pm

Stuart - you are not thick at all. It is just that BD or C part numbers are not part of the code for fasteners. If the fastener has a coded identifier, it will have a number such as UFS 113/6 or suchlike . That sort of number can be used to identify the thread ( Unified ) , Fine or Coarse , Length, diameter , and whether a setscrew or a bolt

Post by **mgcjag** » Tue Jan 12, 2016 8:48 pm

Hi Stuart....just looked in tne KB parts catalogue and your no is what i found BD27546/6 done a google search on that part no and found this at Robeys http://www.martinrobey.com/jaguar/inter ... -chr-scre/

Stuart Exelby · Post by **Stuart Exelby** » Tue Jan 12, 2016 10:03 pm

Thanks Steve - will try Robey's tomorrow!

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Bolt specs and sizes

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