What are bolt strength level numbers

What are bolt strength level numbers. There are different bolts in engine. Learn the strength levels numbers.

[hhiiuubb]

I was into big confusion in choosing the right bolt and searched a lot of videos but my search ends here. Thanks a lot for the short but very informative video.

[MechanicalEI]

Peter Finn, Great Video. The explanation of Bolt Strength was to the point and easy to understand. Thanks for uploading!

[ronaldpiette]

Great video on my 99 Toyota Camry 2.2l I cut a bolt out with the number 11 on it not much info on it just want to be sure for safety reasons

[minintaiwan]

Too simple to know, please read ISO898-1 for more knowledge, 8.8 stands for tensile strength 800Mpa and yield stress640Mpa

[danc.]

So I take it that the 4.8 SB bolts from harbor freight probably wouldn't work where high strength are needed.

[Poto-ws]

Is 8.8 okay for motorcycle rear shock???

[DaDeerHunah]

I put the 10.9 to hold my engine to the motor mount cause the one it had on before broke when I was driving. Is that bad?

[mohammedhakumi]

Please, what max. torque in N.M can be put on bolts of 8.8 hardness

[igorda]

You now nothing, first number, 8x100=500mpa tensile strenght. Second yielding str. 8x8x10=640mpa.

[sharabi]

CAN YOU GET TO THE FREAKIN POINT --SHOULD BE A 2 MT VIDEO.
EXAMPLE: The grade 8.8 refers to the tensile strength which is generally 116, 000 psi, grade 10.9 is generally 150, 000 and grade 12.9 is generally 175, 000 psi. DONE !

[Daniel-OConnell]

Interesting presentation but spoiled by appalling sound quality. How do you expect listeners to subscribe with such poor audio. Would you buy a scratched record? Is it time for YouTube to insist on minimum audio quality in videos uploaded?