On Saturday, September 6, 2014 8:56:57 PM UTC, Mike Spencer wrote:



Well, bought from a dedicated industrial hardware distributor, not from

the local hardware store or Walmart.





Mike Spencer Nova Scotia, Canada

I looked at MIL-HDBK-57F and did not find anything with YD. You might try it using the computer to look for YD. I just looked at manufacturers whose nome started with Y.

Dan