Source for 8mm black wavy washers

[Allen Henderson]

Rounders,

Old style black B8 DIN 137 black wavy washers with 17mm outside diameter. No silly prices please ! Thanks.

-Allen-

[BillJones]

https://www.springmasters.com/produc...in-137-type-b/

£3.10 per 100 pieces ($4.00).

There is a minimum order charge with this company which could add to costs but still not too painful.

The standard finish is a Phosphate and Oiled surface but they could be treated with a Black Oxide finish or Zinc Plated and Black Chromated.

If they were Zinc Plated they would need to be baked to avoid embrittlement.

[Allen Henderson]

Hi Bill,

I've had some other replies on 356 Registry but these are the first that are the correct size. I hope I can find some black ones. I just sent some 356 tranny hardware to the plater to be black zinc'd. Thanks !!

-Allen-

[718RSK]

Hi Bill,
I just sent some 356 tranny hardware to the plater to be black zinc's. Thanks !!

-Allen-

Allen, please report back how it comes out and if it has any iridescence. I have considered black zinc but feel it is more shiny and has a slight iridescence compared with the original plating used. The black hardware on the 356's and early 911's is still a mystery. Popular mis-conception is that it is black ox., not true. It is some sort of phosphating but different and much more durable compared to those phosphate solutions offered today. Still hope to solve this one day.

[Allen Henderson]

Bill, I already know the black zinc will be a little more shinny (try waxing it, or maybe?, skuff and wax..perhaps.) I'll just leave mine. And yes, much better (other than not totally correct)than black oxide that will rust. Thanks !

-Allen-

[mac73s]

Bill, I already know the black zinc will be a little more shinny (try waxing it, or maybe?, skuff and wax..perhaps.) I'll just leave mine. And yes, much better (other than not totally correct)than black oxide that will rust. Thanks !

-Allen-

Oh man....scuffing and waxing washers...that's taking a restoration to a higher level!

[Allen Henderson]

Oh man....scuffing and waxing washers...that's taking a restoration to a higher level!

I wouldn't say I take much to another level. However, I do wax my sheet metal and plated hardware one time before assembly

-Allen-

[Jim Morris]

No doubt those who have done it have noticed. That is, any wax, oil, etc. on #2 zinc (gold iridescent) or #1 zinc (clear with blue tinge) takes away the iridescent components. #2 zinc looks like it was painted yellow (more or less), and #1 just becomes silver. Unfortunately, to my knowledge, there is no preservative or sealer available as a plating (electrolytic) component to slow down the deterioration of these plated components. Same goes for cadmium (and I suspect a lot of people who are told they are getting "cadmium" and believe they are getting cadmium, are actually getting zinc -- there are exceptions in states that still allow the very toxic cadmium processes. After all, both of these platings are sacrificial. The reason for them is not primarily cosmetic; it is to prevent steel from rusting for a longer time than if left bare or oiled.

[Allen Henderson]

No doubt those who have done it have noticed. That is, any wax, oil, etc. on #2 zinc (gold iridescent) or #1 zinc (clear with blue tinge) takes away the iridescent components. #2 zinc looks like it was painted yellow (more or less), and #1 just becomes silver. Unfortunately, to my knowledge, there is no preservative or sealer available as a plating (electrolytic) component to slow down the deterioration of these plated components. Same goes for cadmium (and I suspect a lot of people who are told they are getting "cadmium" and believe they are getting cadmium, are actually getting zinc -- there are exceptions in states that still allow the very toxic cadmium processes. After all, both of these platings are sacrificial. The reason for them is not primarily cosmetic; it is to prevent steel from rusting for a longer time than if left bare or oiled.

Believe it or not, even in California can you get Cadmium....but I use zinc. I think, maybe?, zinc actually lasts longer than Cad..but I'm not sure? Thanks.

-Allen-

[davep]

Soon I will need to get some bolts plated; they are for the 914/4 alloy wheels, so a little special. What seems to be unique about them is that they were copper plated over steel, then what appears to be cadmium. Most of mine never got down to rusting the steel. It seems the copper protects the steel and the cadmium protects the copper.