Identifying Type of Rivets

[Marauder]

I am posting these pictures for a J owner who is still trying to figure out how to post pictures on MooneySpace.

These are rivets on the elevator of his 1980 J. He says they are on his elevator and do not go all the way through the elevator. He wants to know why they are steel. Anyone know why these were used and what they are?

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[FoxMike]

It might have been used to attach earlier static wicks.

[MB65E]

Looks like a standard 1/8in steel centered pop rivet to me. (Hence the rust). However some of the rivets attaching the wick body are not pop rivets. 

The body is most likely alumnium. 

My Dad is building a Sonex, all of those rivets are stainless with stainless center pulls. Nice rivets actually. The sheer strength with the Sonex stainless rivets is greater than a 470AD rivet.

Cool!!  I'll try to find a part number, but don't get too excited on what ones need to go back on there. 

-Matt

 

[chrisk]

I'd love to know the types of rivets.   Also, I'm a bit surprised with the notion of using dissimilar metals for rivets and material.  I would have thought it would cause a corrosion problem.   --Isn't that the reason many nuts and bolts are cadmium plated.  https://www.faa.gov/regulations_policies/handbooks_manuals/aircraft/amt_handbook/media/faa-8083-30_ch06.pdf

 

[ChrisD]

Just to add a little more info regarding the reason for the inquiry on the rivets.  They don't appear to have ever been used to fasten something externally.  I say that because they are tight and painted over long ago.  It's Possible they are factory because of the precise spacing with four pair on each side.  certainly looks jigged.  One of the mechanics at the new garden field speculated that there may be a re-enforcing plate  that runs the length of the elevator on each side.

The paint job on the plane is in good shape and I'm touching up spots.  These are a bit of a challenge to deal with and not create a mess.  Any corrosion cells left behind will of course come back through the touch up.

If they are not structural and removed then the bottom of the pop rivet will end up in the elevator internals and wander about.  Sure would have been nice if they were aluminum like the thousands of other rivets and pop-rivets.

Any insights will be appreciated.  In lieu of a viable solution I'll try to carefully remove as much of the corrosion as practical without doing more harm than good and touch up the paint.

 

Thanks much for all insights and thanks to marauder for posting this for me. 

[ChrisD]

Just to add a little more info regarding the reason for the inquiry on the rivets.  They don't appear to have ever been used to fasten something externally.  I say that because they are tight and painted over long ago.  It's Possible they are factory because of the precise spacing with four pair on each side.  certainly looks jigged.  One of the mechanics at the new garden field speculated that there may be a re-enforcing plate  that runs the length of the elevator on each side.

The paint job on the plane is in good shape and I'm touching up spots.  These are a bit of a challenge to deal with and not create a mess.  Any corrosion cells left behind will of course come back through the touch up.

If they are not structural and removed then the bottom of the pop rivet will end up in the elevator internals and wander about.  Sure would have been nice if they were aluminum like the thousands of other rivets and pop-rivets.

Any insights will be appreciated.  In lieu of a viable solution I'll try to carefully remove as much of the corrosion as practical without doing more harm than good and touch up the paint.

 

Thanks much for all insights and thanks to marauder for posting this for me. 

[ChrisD]

Just to add a little more info regarding the reason for the inquiry on the rivets.  They don't appear to have ever been used to fasten something externally.  I say that because they are tight and painted over long ago.  It's Possible they are factory because of the precise spacing with four pair on each side.  certainly looks jigged.  One of the mechanics at the new garden field speculated that there may be a re-enforcing plate  that runs the length of the elevator on each side.

The paint job on the plane is in good shape and I'm touching up spots.  These are a bit of a challenge to deal with and not create a mess.  Any corrosion cells left behind will of course come back through the touch up.

If they are not structural and removed then the bottom of the pop rivet will end up in the elevator internals and wander about.  Sure would have been nice if they were aluminum like the thousands of other rivets and pop-rivets.

Any insights will be appreciated.  In lieu of a viable solution I'll try to carefully remove as much of the corrosion as practical without doing more harm than good and touch up the paint.

 

Thanks much for all insights and thanks to marauder for posting this for me. 

[Marauder]

5 hours ago, ChrisD said:

Just to add a little more info regarding the reason for the inquiry on the rivets.  They don't appear to have ever been used to fasten something externally.  I say that because they are tight and painted over long ago.  It's Possible they are factory because of the precise spacing with four pair on each side.  certainly looks jigged.  One of the mechanics at the new garden field speculated that there may be a re-enforcing plate  that runs the length of the elevator on each side.

The paint job on the plane is in good shape and I'm touching up spots.  These are a bit of a challenge to deal with and not create a mess.  Any corrosion cells left behind will of course come back through the touch up.

If they are not structural and removed then the bottom of the pop rivet will end up in the elevator internals and wander about.  Sure would have been nice if they were aluminum like the thousands of other rivets and pop-rivets.

Any insights will be appreciated.  In lieu of a viable solution I'll try to carefully remove as much of the corrosion as practical without doing more harm than good and touch up the paint.

 

Thanks much for all insights and thanks to marauder for posting this for me. 

You're stuttering... At least you now know how to post a picture. And it isn't even upside down!

[M20F]

All the rivets on my F are smoking rivets, because it is so fast.