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Recovery hook bolts
Posted: Mon Oct 03, 2011 10:46 pm
by jagni401
The bolts on my recovery hook are labelled A2 80. Are these high tensile and strong enough.
Cheers
Nick
Re: Recovery hook bolts
Posted: Mon Oct 03, 2011 11:13 pm
by kbushnz
Found this on Google
http://autonopedia.org/crafts_and_techn ... kings.htmlA2 = Stainless
80 = ISO 3506-1 A2-80 304 stainless steel-class
Re: Recovery hook bolts
Posted: Tue Oct 04, 2011 3:25 am
by niblik
which in short is no.
Re: Recovery hook bolts
Posted: Tue Oct 04, 2011 5:35 am
by tomsoffroad
8.8 zinc coated will do the job.

Re: Recovery hook bolts
Posted: Tue Oct 04, 2011 6:15 am
by ice4x4
A2-80 Stainless Steel Bolt.
A = Austenitic Steel
2 = Chemical composition of steel
80 = Ultimate tensile strength of at least 800Nm/mm, yield strength 600Nm/mm
Grade 8.8 carbon steel bolt has a ultimate tensile strength of 800Nm/mm, yield strength 600Nm/mm
So your A2-80 bolts are just as strong as 8.8 carbon steel ones...
Re: Recovery hook bolts
Posted: Tue Oct 04, 2011 10:09 am
by jagni401
Beaut, cheers for your help