Aeroleds hardware missing

Hi all QQ - the washers and lock washers were missing from my Aeroled landing light (that go on the bolt that holds the light to the bracket). I talked to them on the phone and while they are sending me them in the mail also said they were 10-32 bolts and I could get the washers in a hardware store.

So, I've seen enough posts about using non AN hardware but what about stuff like the lights? Are suppliers like Aeroled also using AN hardware or just regular bolts/nuts?

Though I would hope they're supplying some Mil-spec hardware, for something like an LED light, and especially washers, you're fine using hardware from HD/Lowes/ACE aviation supply. Either corrosion resistant steel (SS) or some kine of plating, cad, zinc, should do just fine. I'd avoid letting SS and AL touch though, if you can...