Regular Height Nut vs. Reduced Height Nut

[vbaldwin]

Hi all!

I have a product which uses standard 316 nylock nuts. In one scenario, I need to use a reduced height 316 nylock nut for clearance. Is there a rule of thumb or quick calculation I can perform that will tell me what reduction in strength this causes?

 

[TugboatEng]

The rule of thumb is that it takes about 3 full threads of engagement to produce nearly the full tensile strength of the fastener. Typically, because of deformation, the load is not carried evenly across all threads of a nut.

You may experience galling issues during tightening do to increased bearing load.

 

[EdStainless]

And then you need additional length for the locking.
Or look at a different locking mechanism.

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P.E. Metallurgy, consulting work welcomed

 

[itsmoked]

Skip the Nylock and go with Locktite.

Keith Cress
kcress -

http://www.flaminsystems.com

 

[SnTMan]

vbaldwin Is the fastener loaded in tension or shear?

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[vbaldwin]

Is the fastener loaded in tension or shear?

the connection will be in bending.

 

[SnTMan]

So, how is the nut loaded?

The problem with sloppy work is that the supply FAR EXCEEDS the demand