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Been looking for a while, can't find it anywhere.
What grade do I need to replace a Suzuki bolt with a 4 or a 7 on the head?
What grade do I need to replace a Suzuki bolt with a 4 or a 7 on the head?
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tom metric uses 8.8 ( grade 5) or 10.9 ( grade 8) -
I know, and Suzuki uses a 4 or a 7. What do those mean?Comment
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Ya know, I've always wondered that myself. You'll find some bolts head stamped with a 4-7 etc.Originally posted by tkent02 View PostsigpicMrBill Been a GSR member on and off since April 2002
1980 GS 750E Bought new in Feb of 1980
2015 CAN AM RTS
Stuff I've done to my bike:dancing: 1100E front end with new Sonic springs, 1100E swing arm conversion with new Progressive shocks installed, 530 sprockets/chain conversion, new SS brake lines, new brake pads. New SS fasteners through out. Rebuilt carbs, new EBC clutch springs and horn installed. New paint. Motor runs strong.Comment
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Interesting.
I find this...
hereMetric fasteners which are becoming the norm also use a grading system, but not the same numbers as the US. The cheapest fasteners have no marks, just as the US, and are very weak. We do not recommend use of a non-graded metric fastener for anything but decoration. The progression of numbers is roughly that of the US counterparts, but 2 numbers higher. For example a bolt with a 7 on its head is roughly equivalent to a grade 5. The 10.9 rating is about a grade 8 and the more recently introduced 8.8 is in between.
edit I'm still looking! but think it might be found in "JIS standard" somewhere...?Last edited by Gorminrider; 06-17-2014, 01:01 PM.Comment
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