givemethebighammer
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| posted on 19/6/06 at 08:56 PM |
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Bolt marking ?
I have just bought some 1/2 inch UNF bolts for my suspension rose joints. I don't know much about tensile strength of imperial stuff. Does anyone
know what these markings mean and how do they compare to metric stuff ?
thanks
[Edited on 19/6/06 by givemethebighammer]
 
Rescued attachment bolt.JPG
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datz510
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| posted on 19/6/06 at 09:24 PM |
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Dont see yours on here, but here are the common bolt markings and strengths:
http://www.kjbolt.com.au/technical_info_03.html
Hang on, we're goin for a ride!
1972 Datsun 510 (1600) w/ 200hp 3.0L V6
1995 Nissan Pathfinder rock crawler
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Minicooper
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| posted on 19/6/06 at 09:31 PM |
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S is equivalent to metric 8.8 which 50~55 tonnes per square inch
Cheers
David
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givemethebighammer
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| posted on 20/6/06 at 12:11 PM |
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thanks, looks like it will be up to the job.
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JB
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| posted on 20/6/06 at 05:30 PM |
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Bolts & Markings
Just bear in mind that a marking on a bolt head does not garentee the quality of the bolt. Anybody could put any marking on the bolt head.
What is a better guide of quality is the manufacturer and you can get a very good idea just by inspecting the threads and quality of manufacture.
John
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