I would like to ask for advice

2017-05-04View Original

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What does t mean in WN RFⅡt(W.D-2222)450-16?

Reply #22017-05-04

Where did it come from? What is it?

Reply #32017-05-04

For hex head bolts of grade 8.8, enter “b”; for fully threaded studs made of 35CrMoA, enter “t”. HG/T21514-2014, P18

Reply #42017-05-04

Look for it under mark 4 in HG/T21514.

Reply #52017-05-04

Thank you, I’ve learned it, but I’m still not familiar with my own standards and need to improve

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