Flat/Flush Finish Washer

[MAYOR28]

I am looking for some washers like those shown below for finishing the interior panels of my corvette. I want to try to reuse some of the interior panels, with new dye applied, but they are cracked at some of the mounting holes. These washers would cover most of those cracks and distribute the screw load a little better than the typical finish washers.

I think they may be called Flush Countersunk Finish Washers. But I am struggling to ID them in McMaster or MSC. Anyone got a better name?

Outer Diameter would be 3/8" to 1/2", with an ID for a #8 fillister head screw.

Thanks!

 

[doublearon98]

Smallest I can find on McMaster is a cup washer #92856A101. You might be better off by pairing #90127A112 belleville washer with a regular flat washer

Side note: be sure to drill a hole in the end of your cracks to reduce the risk of propagation.

Sent from my SM-G930V using Tapatalk

 

[bigmike989]

Fastcap option? https://www.fastcap.com/product/wood-washer

 

[ez-duzit]

McMaster-Carr.

 

[MAYOR28]

Smallest I can find on McMaster is a cup washer #92856A101. You might be better off by pairing #90127A112 belleville washer with a regular flat washer

Side note: be sure to drill a hole in the end of your cracks to reduce the risk of propagation.

Sent from my SM-G930V using Tapatalk

Ah these are good ideas. Thank you.

I had not thought of a 2 piece solution, that may be easier to source.

 

[MAYOR28]

Fastcap option? https://www.fastcap.com/product/wood-washer

I believe these would be too big, but those have the right profile.

 

[Grimpala]

https://www.mcmaster.com/countersunk-washers/

 

[MAYOR28]

https://www.mcmaster.com/countersunk-washers/

Those are all regular 'finish' washers that have the "volcano" shape to them. There is only one group on that page with the correct profile, but the 'Cup Washers' seem too large.

 

[sick467]

Try Fastenal...

https://www.fastenal.com/product/fa...ter+Diameter&selectedAggregation=Nominal+Size

I think these have that "volcano" look however.

 

[sick467]

I think you are looking for Tinnerman Washers. Try that in a web search.

 

[Mike Folks]

www.boltdepot.com?

 

[CraigStu]

If you buy the special drill bit

1/2 in. Six Flute Countersink

Amazing deals on this 1/2In Six Flute Countersink at Harbor Freight. Quality tools & low prices.

www.harborfreight.com

and use it carefully, you can use plain flat washers and a flat or oval head screw. Take your screw w/ you to a good ACE or TrueValue store and check washers in their bins. Don't hesitate to look at metric sizes too. Sometimes they are just a little different from fractional.

 

[Dumber than lumber]

I made something similar to that from some type of nylon or delrin (etc.) rod. Borrowed a small lathe from a friend. I guess you could do aluminum pretty easily...once you had/borrowed such a lathe.

 

[MAYOR28]

I think you are looking for Tinnerman Washers. Try that in a web search.

YES!
Thank you! And Aircraft Spruce has them in various sizes. Perfect.


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