7/8 - 14 2B

[RobertHasty]

Hi,

I got this on the drawing 7/8 - 14 2B.

What does 2B stand for?

Thank you in advance.

 

[ema157]

Class 2B is standard/free fit for internal threads. See here or here.

 

[MintJulep]

It defines the thread class.

Fastener Thread Classes Explained | MW Components

Thread fit is a measure of looseness or tightness. For unified inch threads, there are 3 thread classes. Learn about each and how they function.

www.mwcomponents.com