<VV> Nylock Nuts

[Jim Houston]

"Distorted-thread Hex Lock Nuts" are referred to in aviation as "High 
temp" self locking nuts.  They are used in places where the temps 
involved would melt the nylon out of a nylock type self locking nut..  
They are also sometimes called "Jap" nuts (don't ask me why - I don't 
have a clue).. but, they are lighter than conventional nuts so when you 
are talking about something like a C5A, you are talking about a 
substantial weight savings..

Jim Houston

On 6/7/2010 6:11 PM, rbuckridge at comcast.net wrote:
>
> Nylock nuts do have their place, but one of the first things we learned when we got into racing Legends Cars is, grade 8 hardware breaks and nylock nuts come loose.
>
> If you want a good lock nut, for my money, I like the Stover nuts. Stover nuts aren't round they are oval. We used Stover nuts to lock down the exhaust headers when building Superformance Cobras. Never had one come loose.
>
> Here is a link to McMaster-Carr, http://www.mcmaster.com/#stover-nuts/=7flx5m
>
> They refer to them as "Distorted-Thread Hex Lock Nuts".
>
> Also known as all-metal and Stover locknuts, these one-piece nuts feature distorted threads that create a vibration-resistant friction fit—so the nuts stay put. Not reusable.
>
> Toplock— Threads are deformed in two or three separate areas.
>
> Centerlock— Also known as two-way locknuts, these nuts are compressed in the center. This allows them to be threaded on from either end.
>
> Oval Lock— One end has a complete thread distorted into an oval shape. Versions with flange cover oversized holes. Grade G have a min. Rockwell hardness of C24; Grade C have a min. Rockwell hardness of C26. Both grades are equivalent to high-strength alloy steel (Grade 8).
>
> For technical drawings and 3-D models, click on a part number.For technical drawings and 3-D models, click on a part number
>
> Roy - Bayshore
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