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Bolt stress grades
Taz Surfleet - 30/3/07 at 10:37 AM

Hi Chaps
have just taken bought some of Nick Skidmore's (cheers Nick) rose joints in 3/8 unf does any one have a stress grade charts for imperial all the ones i can find are in metric !

Mr Whippy - 30/3/07 at 10:49 AM

a die hard imperialist

t.j. - 30/3/07 at 11:04 AM

What is imperial??

In Dutch it is a roof-rack

http://www.skf.com/portal/skf/home/products?paf_dm=shared&maincatalogue=1&lang=en&newlink=3_3_11

maybe this: http://euler9.tripod.com/bolt-database/22.html

[Edited on 30/3/07 by t.j.]

Mr Whippy - 30/3/07 at 11:26 AM

Imperial was what we were before we gave it all away and became a nothing on the polical ladder...Bring back the Empire!

Mal - 30/3/07 at 11:45 AM

I'm not fully up to speed on this, but there appear to be 2 systems for giving this information.
UNF bolts used on British cars of the 60's and 70's were stamped with either: R, S, T, or X. These being inceasing values of either yeild or UTS figures in tons/ square inch. I think R was 45/55, S 50/60 and T 55/65 from memory.
There is another, more current system which uses different numbers of radial lines stamped on the head.
This site here gives more detail.
www.rockcrawler.com/techreports/fasteners/index.asp

HTH

Mal

Nick Skidmore - 30/3/07 at 03:21 PM

I have the best grade Aerospace NAS bolts available from stock for not much more than commercial stuff.

The info I'll need from you will be the diameter which I guess is 3/8 and the distance between the outer edges of the bracket you are bolting through.

These are 95.000 psi in shear and 160,000 psi in tension without the brittleness of industrial 12.9 grade stuff.

[Edited on 30/3/07 by Nick Skidmore]

Confused but excited. - 30/3/07 at 07:43 PM

quote:
Originally posted by t.j.
What is imperial?



A natural, God given, system of measurement.
Back off Brussels!

Macbeast - 30/3/07 at 08:22 PM

Imperial is the Dutch attitude to Indonesia

t.j. - 30/3/07 at 09:20 PM

quote:
Originally posted by Macbeast
Imperial is the Dutch attitude to Indonesia



You Dutch-India

We don't want them back. First let us clean up the mess in Europe.

But I still think you should get that EURO-coin! And drive on the right side of the road

Peteff - 30/3/07 at 09:32 PM

The left is the right side of the road

gazza285 - 30/3/07 at 09:51 PM

I already drive on the right side of the car, you want me to drive on the wrong side of the road as well?

Taz Surfleet - 30/3/07 at 09:56 PM

Wish I'd known when I bought the joints Nick! will measure the brackets tomorrow and send u2u.

JB - 31/3/07 at 04:40 AM

Aerospace bolts are the way to go for suspension etc. You know they are high quality, are plated and available in the correct length without having to cut a load of thread off.