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 Post subject: Bolt sizes
PostPosted:Sat Sep 26, 2020 9:23 pm 
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Hi mine after the bolt sizes for the rear trailing arms and the upper tye rods,can any one help

thanks Dave


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 Post subject: Re: Bolt sizes
PostPosted:Sun Sep 27, 2020 9:48 am 
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Sorry, can't actually answer your question, but the most reliable way I've found for sizes of nuts/bolts is to find the part number in the parts book, then x-ref them in the "Standard Triumph Hardware Catalogue"
https://app.box.com/s/i2x6rn1mk0mzql8qrhnj55yevtwu5tr5

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 Post subject: Re: Bolt sizes
PostPosted:Mon Sep 28, 2020 9:04 am 
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Quote:
Hi mine after the bolt sizes for the rear trailing arms and the upper tye rods,can any one help

thanks Dave
Dave - attachment should help finding sizes

https://rimmerbros.com/Item--i-GRID008488

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 Post subject: Re: Bolt sizes
PostPosted:Mon Sep 28, 2020 5:26 pm 
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Sorry, can't actually answer your question, but the most reliable way I've found for sizes of nuts/bolts is to find the part number in the parts book, then x-ref them in the "Standard Triumph Hardware Catalogue"
https://app.box.com/s/i2x6rn1mk0mzql8qrhnj55yevtwu5tr5
Apologies, I hadn't realized that BH607241 (7/16" UNF x 3") and BH607221 (7/16" UNF X 2.3/4") weren't in the catalogue - my suggestion was about as much use as a chocolate tea pot!

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 Post subject: Aye..
PostPosted:Mon Sep 28, 2020 6:36 pm 
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Upper arm bolt is HB1022, hex head bolt 7/16"UNF x 2 3/4" long


Trailing arm are HB1024, hex head bolt 7/16"UNF x 3" long

and for the shocker HB1019, hex head bolt 7/16"UNF x 2 3/8" long


The nyloc nut used throughout is YN2910,
which has an 11/16"AF head and also is deeper than a standard nyloc nut.




Ian.

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 Post subject: Re: Bolt sizes
PostPosted:Mon Sep 28, 2020 9:28 pm 
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Location:Harrow Middlesex
Quote:
Quote:
Sorry, can't actually answer your question, but the most reliable way I've found for sizes of nuts/bolts is to find the part number in the parts book, then x-ref them in the "Standard Triumph Hardware Catalogue"
https://app.box.com/s/i2x6rn1mk0mzql8qrhnj55yevtwu5tr5
Apologies, I hadn't realized that BH607241 (7/16" UNF x 3") and BH607221 (7/16" UNF X 2.3/4") weren't in the catalogue - my suggestion was about as much use as a chocolate tea pot!
Im partial to tea and chocolate :D :D


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 Post subject: Re: Aye..
PostPosted:Mon Sep 28, 2020 9:31 pm 
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Quote:
Upper arm bolt is HB1022, hex head bolt 7/16"UNF x 2 3/4" long


Trailing arm are HB1024, hex head bolt 7/16"UNF x 3" long

and for the shocker HB1019, hex head bolt 7/16"UNF x 2 3/8" long


The nyloc nut used throughout is YN2910,
which has an 11/16"AF head and also is deeper than a standard nyloc nut.




Ian.
Ian

Thanks, any idea why the nyloc nut is deeper than standard ?

Dave


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 Post subject: Re: Bolt sizes
PostPosted:Mon Sep 28, 2020 9:32 pm 
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Location:Harrow Middlesex
Quote:
Quote:
Hi mine after the bolt sizes for the rear trailing arms and the upper tye rods,can any one help

thanks Dave
Dave - attachment should help finding sizes

https://rimmerbros.com/Item--i-GRID008488
Thanks


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 Post subject: Yes.....
PostPosted:Tue Sep 29, 2020 2:01 pm 
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Location:Caithness, Scotland
Quote:
Thanks, any idea why the nyloc nut is deeper than standard ?
You can tighten them up more without stripping the thread.



Ian.

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 Post subject: Re: Bolt sizes
PostPosted:Tue Oct 06, 2020 1:23 pm 
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Quote:
Quote:
Sorry, can't actually answer your question, but the most reliable way I've found for sizes of nuts/bolts is to find the part number in the parts book, then x-ref them in the "Standard Triumph Hardware Catalogue"
https://app.box.com/s/i2x6rn1mk0mzql8qrhnj55yevtwu5tr5
Apologies, I hadn't realized that BH607241 (7/16" UNF x 3") and BH607221 (7/16" UNF X 2.3/4") weren't in the catalogue - my suggestion was about as much use as a chocolate tea pot!
Not really relevant but an interesting point, both those trailing arm bolts (BH607241 and BH607221) are used on the TR7 trailing arms. Being 7/16" UNF they are odd because most of the rest on the TR7 body stuff is metric !!

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 Post subject: Re: Bolt sizes
PostPosted:Tue Oct 06, 2020 7:13 pm 
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And once you have found the part number or size order them from https://www.namrick.co.uk/#:~:text=Nuts ... il%20order.

much cheaper than other 'specialists'

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 Post subject: Re: Bolt sizes
PostPosted:Tue Jan 26, 2021 3:40 pm 
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Picking up on this thread and in particular on the YN2910 nyloc nuts.......

These are the deeper, larger Nyloc nuts with the 11/16 spanner size rather than the 5/8 size that is the norm now. Rimmer's no longer do the 11/16 spanner sized nut, superceding the part to the smaller 5/8 version. I have tried sourcing these new and I am having trouble as they seem almost impossible to find.. Namrick as an example used to stock them but not any longer...

So on the basis that I cannot find new ones, I assume using the ones I have taken off (11/16), if they are in a good visible condition after a good clean up, would be better than using new 5/8 spanner sized nylocs? Or does it not really matter?

Views/opinions appreciated, or if anyone knows where these can be obtained new.............. :D

Thanks


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 Post subject: Re: Bolt sizes
PostPosted:Tue Jan 26, 2021 5:34 pm 
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Chris Witor lists them:

https://www.chriswitor.com/proddetail.php?prod=YN2910

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 Post subject: Re: Bolt sizes
PostPosted:Tue Jan 26, 2021 6:01 pm 
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Ouch, assuming priced each.
Canleys list them, £18 for a pack of 100, or 30p each. However, worth checking they are the larger spanner size.

saying all that, the curent 5/8 spanner size nuts are fine everywhere I have used them (yes, I bought a big bag of all teh usual sizes years ago, almost out of 5/16 now, plenty of the bigger sizes though)

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 Post subject: Re: Bolt sizes
PostPosted:Tue Jan 26, 2021 6:52 pm 
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Location:Midhurst, West Sussex.
This company have the correct nuts.

https://www.arunfasteners.co.uk/stock-r ... sert-nuts/

Listed as: - 7/16 UNF Nylon Insert Nut x 0.687 A/F Zinc, which is 11/16".

They seem to list absolutely every type of nut and bolt available. Not sure on price, you have to call them. I intend to get a list of every nut and bolt I need and order from them in one hit, as I know they prefer a larger order.


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