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how to dedicate letters or numbers to Grades of NUTS?

how to dedicate letters or numbers to Grades of NUTS?

how to dedicate letters or numbers to Grades of NUTS?

(OP)
Dear ALL,


I have reviewed reference standard No.: BS 1083:1965 for Screws and Nuts,in this booklet Grades has been mentioned by English letter's such as A,R...and so on,but as i have searched grades for these commodities has been mentioned by numbers such as 4.8,then i want to know how grade 4.8 is as well as grade A, how these categories relate to each other?

Thanks,
Shadi

RE: how to dedicate letters or numbers to Grades of NUTS?

Look in the ANSI/AMSE standards in the library or websites. Also you can find a discussion in the Machinist Handbook. Don't expect this forum to just hand you an answer, like a one or two line solution. Do your own research.

Regards,
Cockroach

RE: how to dedicate letters or numbers to Grades of NUTS?

numbers like 4.8 are defined through ISO-898.

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RE: how to dedicate letters or numbers to Grades of NUTS?

In general, grades are associated with material mechanical properties such as proof strength, yield strength, ultimate strength and hardness.

Not all standards quantify all properties.

There may not be a direct cross between grades established by different standards.

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