Mystery screws

[BigFlo]

I have these 4 screws with captive copper washers. I didn’t know they were copper until I cleaned them after they were long removed from my 65 Belvedere sedan. I didn’t note where they came from. They also have a unique split point. Anyone have any clue as to where these go?
Thanks

 

[khryslerkid]

On my '62 they were used along the top of the aluminum grill.

 

[BigFlo]

On my '62 they were used along the top of the aluminum grill.
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K-kid - you are awesome. Thanks

 

[Thunderlugs]

K-kid - you are awesome. Thanks

Yup.... The Kid Is Right on the money! They go along the top of the grille on my 65 Belvedere !

 

[WileE]

Ooohh... sorry... for a moment I thought the title of the thread referred to

 

[gkent]

Steel screws will rot the aluminum - hence the copper washers.

 

[BigFlo]

Yup.... The Kid Is Right on the money! They go along the top of the grille on my 65 Belvedere !

thanks Thunderlugs. I looked at my grille and there are 5 mounting tabs, but I only have 4 screws so I may have misplaced one. Do you see 5 across the top of yours? Thanks

 

[BigFlo]

Steel screws will rot the aluminum - hence the copper washers.

Thanks - I was sure the copper had to do with either conductivity or metallic interaction.

 

[matthon]

On my '62 they were used along the top of the aluminum grill.

What about the other grill screws, do they have/need copper washers?

I took apart three 62s and iirc all had rusty crusty washers.

 

[khryslerkid]

What about the other grill screws, do they have/need copper washers?

I took apart three 62s and iirc all had rusty crusty washers.

IIRC just the top screws have the copper washer. More than likely so you won't have rust from a steel washer running down over the grill.

 

[matthon]

More than likely so you won't have rust from a steel washer running down over the grill.

That makes sense, they were only supposed to last a few years anyway.
I wonder if the 62 Polara got those 5 copper washers, and the lower trim levels got rusty streaks, lol.
Let's see, x = total savings, where:
x = # of non Polara x 5 copper washers

Curious, next time I'm digging in my rusty bolt/nut bin I'll be looking for copper washers.

 

[khryslerkid]

That makes sense, they were only supposed to last a few years anyway.
I wonder if the 62 Polara got those 5 copper washers, and the lower trim levels got rusty streaks, lol.
Let's see, x = total savings, where:
x = # of non Polara x 5 copper washers

Curious, next time I'm digging in my rusty bolt/nut bin I'll be looking for copper washers.

Could be the rust from the screw that made the copper washer look rusty. I remember discovering the ones that I have as being copper only after I was cleaning them up on the wire wheel.