thread classes 1A-2A-3A
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Posted by: engin

10/25/2005, 12:00:49

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I have a print that doesnt indicate thread class. (3/4-16 UNF) Is there a standard about if thread class isn't indicated? Is this 1A, 2A or 3A.

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Re: thread classes 1A-2A-3A
Re: thread classes 1A-2A-3A -- engin Post Reply Top of thread Forum
Posted by: randykimball
10/26/2005, 00:17:59

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To be safe.... go 3A or 3B.. If it required better it would most surely say so. Less than class 3 you take a chance. .. shrug... just be safe.

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