Need custom screw finish ideas

[P. Waller]

Black chrome plating.
If appearance and lifespan are a primary concern and cost is secondary.
Here is an example https://www.arlingtonplating.com/capabilities/black-chrome-plating/

At the machine shop where I am employed we make bass guitar components that terminate the strings from stainless steel, some are black oxided after machining for appearance only, this is also a durable finish process, not nearly as durable as black chrome however but far less expensive.

Choose wisely.

 

[Groundhog]

Black chrome plating.
If appearance and lifespan are a primary concern and cost is secondary.
Here is an example https://www.arlingtonplating.com/capabilities/black-chrome-plating/

At the machine shop where I am employed we make bass guitar components that terminate the strings from stainless steel, some are black oxided after machining for appearance only, this is also a durable finish process, not nearly as durable as black chrome however but far less expensive.

Choose wisely.

Great info & idea. I did a search and found several places that stock black chrome plated metric socket head screws. You are right though, they are expensive - a bag or 10 for $20 and I need a couple of bags to get different sizes. But still, they seem like the answer to my problem. And I've learned that you can't look at the prices of Ducati parts without risk of sudden cardiac arrest.