Locking nut help

I'm in the process of fitting a new exhaust, I had to replace a stud. The studs came with locking nuts...but what direction do they get fitted in?

 

the nut part goes the the face

 

^this. Nut part down. The grippy metal bit's at the top, like a Nylok.

 

^^^^
What they said.
They're called Aerotite, they work in a similar way to Nylocs but won't fail under heat.

 

Worth buying, IMHO, if you've got a friendly fastener supplier near you. I used loads on my van, in places where VW used the same.

 

There's about 2 dozen stainless ones in my garage.

 

Thanks everyone that the way I was thinking but was told by a engineering family member that the they should be the other way around so the slots crush when tightening up to a face

 

Lets hope the family member hasn't worked on any aeroplanes then.

@zed is very clued up on lock nuts and rates their use very highly.