| Author |  Topic  | |
UK_Sub
V4 Guru
United Kingdom
2558 Posts |  Posted - 05 Jan 2021 : 19:20:46  
| | Can anyone tell me the technical spec. of a standard wheel bolt please? |
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Dirtbiker
V4 Guru
United Kingdom
1061 Posts | Posted - 05 Jan 2021 : 19:24:20
| Have a look on the technical section on here.
There is a link to bolt specifications.
Cheers! |  |
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UK_Sub
V4 Guru
United Kingdom
2558 Posts | Posted - 06 Jan 2021 : 15:51:04
| Thanks Gareth, I didn't know that was there!
Downloaded now.
I'm seeing if I can get some bolts made up for some Cromodoro wheels. As you know, Soccerball bolts work, but I'm not sure how much of the thread actually reaches the hub.
You can buy new Soccerball bolts from the Swedish Saab Club, but at £9 each (£180 for the set!), they're a bit pricey. I found someone (also in Sweden) producing the proper bolts for the Cromodoro alloys, but they were still £145 for the set (plus shipping!).
I'll let you know how I get on...
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deggsie
V4 Fanatic
United Kingdom
432 Posts | Posted - 07 Jan 2021 : 10:40:33
| Sweedspeed in Netherlands might be worth a try; they're offering Soccerball bolts at 8.40 Euros each.
PS I'd be a bit wary of the Bolts chart - says they're 'wheel nuts' and you only need 16 of them !
___________________________
Saab - beyond the conventional ! |
Edited by - deggsie on 07 Jan 2021 10:46:11 | |
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Derek
V4 Guru
United Kingdom
2191 Posts | Posted - 07 Jan 2021 : 13:18:56
| | There are some very inferior soccer ball bolts out there that break easily. I think they have been referenced here before. On one of the American forums pics were shown of using normal bolts and high strength washers with the Chomodoros. If the Chromos have steel inserts for the bolts that might be accurate enough. No ideal though. | |
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Dirtbiker
V4 Guru
United Kingdom
1061 Posts | Posted - 07 Jan 2021 : 16:30:04
| Hi Simon,
Yes, let me know how you get on, I might be interested in a set.
I think when I fitted the cromadoras to the 95 I did check and was happy with how much thread went in.
I am going to check again though for peace of mind!
Haven’t actually seen the 95 since I moved house but should be bringing it to the new place soon.
I have heard about poor quality soccerball bolts but because mine are known to be old I hope that means they are ok.
Cheers | |
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UK_Sub
V4 Guru
United Kingdom
2558 Posts | Posted - 07 Jan 2021 : 18:14:37
| Interestingly, that chart says they are 9/16" x 16mm UNC, but the bolt guy I emailed yesterday says, his info is Saab V4's are 1/2" x 20mm UNF.
I just checked a service manual and it says 9/16" x 19.05 UNC, which I would assume is gospel. |
Edited by - UK_Sub on 07 Jan 2021 18:26:36 | |
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Woody
V4 Guru
United Kingdom
2764 Posts | Posted - 07 Jan 2021 : 19:48:39
| | Definitely UNC. | |
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andydeans3
V4 Guru
United Kingdom
2016 Posts | Posted - 07 Jan 2021 : 22:19:03
| quote:
Originally posted by UK_Sub
Interestingly, that chart says they are 9/16" x 16mm UNC, but the bolt guy I emailed yesterday says, his info is Saab V4's are 1/2" x 20mm UNF.
I just checked a service manual and it says 9/16" x 19.05 UNC, which I would assume is gospel.
Simon. As Woody says, most definitely 9/16" UNC.
There is no such thing as 20 mm UNF, UNF and UNC threads are Imperial not metric.
Apart from the engine, (and maybe the gearbox - not sure), all the bolt system on the 96 is imperial.
Length depends on type of wheel. Steel wheels short, alloy wheels much longer.
You can't bolt up a steel wheel, with alloy wheel bolts, as I found to my cost, when trying to fit my steel spare wheel, with alloy wheel bolts.
1978 LHD SAAB 96
1978 MGB Roadster
2008 LHD "Classic" Renault Twingo
1991 Nissan Figaro |
Edited by - andydeans3 on 07 Jan 2021 22:36:39 | |
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UK_Sub
V4 Guru
United Kingdom
2558 Posts | Posted - 14 Jan 2021 : 12:04:56
| Saw this on the Vintage Saab Enthusiasts forum and thought it was worth sharing...
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Dirtbiker
V4 Guru
United Kingdom
1061 Posts | Posted - 14 Jan 2021 : 15:42:36
| Nice find Simon!
Definitely interested in a set of correct bolts now.
I want to do some measuring when I get a chance. One thing I am thinking is that what is written doesn’t take into account the fact that the wheels are hubcentric. My assumption is that the flange on the hub holds them central, not the bolts.
I’m not arguing with Jack Ashcraft though!
Cheers for posting. | |
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| | Topic | |
Wheel bolts
