Discussion
Try these guys I've used quite a few times, really good for things out of the ordinary, Fred Dibnah used them on his travels when his steam engine needed things making. If they ain't got it they will make it fr you.
Thomas Smith Fasteners
Unit 2A
Swan Business Centre
Swan Lane
Hindley Green
Wigan WN2 4HD
01942 520260
Fax : 01942 520261
Thomas Smith Fasteners
Unit 2A
Swan Business Centre
Swan Lane
Hindley Green
Wigan WN2 4HD
01942 520260
Fax : 01942 520261
Time for me to climb aboard one of my favourite hobby-horses!
Despite the fact that most of the world’s aircraft and racing cars are held together with imperial (inch) fasteners, many commercial tool and fastener stockists in the UK fail to grasp this fact and often only supply metric, or, at best, a limited imperial range.
Commercial grade fasteners (bolts) are typically marked 8.8, 10.9 or 12.9. Taking the 12.9 grade, this means a bolt made from a steel of 1200N/mm2 ultimate tensile strength and having a yield strength of 90% of ultimate strength. This is a fairly high tensile bolt, which would seem to compare favourably with NAS standard and AN standard aircraft fasteners, except that the commercial high tensile fasteners tend to be a bit more brittle and not very fatigue resistant.
Radical tend to use 8.8 grade commercial bolts (800N/mm2 ultimate tensile strength and having a yield strength of 80%). Though these are not very high tensile strength, this is not such a bad thing, as the Radical bolts are quite conservatively sized (for which read a bit bigger than they would otherwise need to be) and the 8.8 grade will tend to yield on impact, rather than fracture.
If you want to stick with the 8.8 grade fasteners, then Radical will sell you the right diameters and lengths in kit packs without you having to do the research on what sizes you need.
If you’re happy doing all the measurements necessary, then you could fit genuine aircraft grade fasteners, as supplied by Nick the Skid. You’ll find him here:-
http://www.nickskidmore.plus.com/
Having said all that, if in doubt, it’s probably best to stick with original equipment standard rather than compromise on safety by using inferior fasteners of unknown provenance.
Can I get down now?
Despite the fact that most of the world’s aircraft and racing cars are held together with imperial (inch) fasteners, many commercial tool and fastener stockists in the UK fail to grasp this fact and often only supply metric, or, at best, a limited imperial range.
Commercial grade fasteners (bolts) are typically marked 8.8, 10.9 or 12.9. Taking the 12.9 grade, this means a bolt made from a steel of 1200N/mm2 ultimate tensile strength and having a yield strength of 90% of ultimate strength. This is a fairly high tensile bolt, which would seem to compare favourably with NAS standard and AN standard aircraft fasteners, except that the commercial high tensile fasteners tend to be a bit more brittle and not very fatigue resistant.
Radical tend to use 8.8 grade commercial bolts (800N/mm2 ultimate tensile strength and having a yield strength of 80%). Though these are not very high tensile strength, this is not such a bad thing, as the Radical bolts are quite conservatively sized (for which read a bit bigger than they would otherwise need to be) and the 8.8 grade will tend to yield on impact, rather than fracture.
If you want to stick with the 8.8 grade fasteners, then Radical will sell you the right diameters and lengths in kit packs without you having to do the research on what sizes you need.
If you’re happy doing all the measurements necessary, then you could fit genuine aircraft grade fasteners, as supplied by Nick the Skid. You’ll find him here:-
http://www.nickskidmore.plus.com/
Having said all that, if in doubt, it’s probably best to stick with original equipment standard rather than compromise on safety by using inferior fasteners of unknown provenance.
Can I get down now?
http://www.westfieldfasteners.co.uk
Don't use stainless for the high stress areas such as suspension , brakes etc though
http://www.tridentracing.co.uk
For all NAS and High tensile fasteners
S
Don't use stainless for the high stress areas such as suspension , brakes etc though
http://www.tridentracing.co.uk
For all NAS and High tensile fasteners
S
Edited by Simon T on Friday 3rd January 08:25
Get in touch with Ian Temple at IZFAST in Milton Keynes, Ian supplies many race teams and a company already mentioned in this thread with their fasteners. Tel 01908 366077 Website is www.izfast.co.uk
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