I work for a large defense contractor, it's been at least a decade since the government has allowed use of any hex chrome fasteners on their vehicles. They came out with a new mil spec for fastener coatings probably about 14 years ago, we still come across certain sizes of fasteners that have never been made under that new spec. But the $30 a bolt we pay for those is better than grabbing some hex chrome ones that have been sitting on the shelf for years apparently. Same with electrical connectors, they've been clean for a decade+ coming from vendors, but we regularly need to get a waiver in order to use government provided components that are still made with hex chrome. I guess it's OK for them to not follow the rules they created for others.
