How many do you need? I have a couple that I can drop in the mail.
And BTW what are they used for?
appreciate the offer! but I think I just ordered 100 of these so I should be good so long as what I ordered works.
The washer is to help center the screws pictured in the square holes of the rack. The screw secures the supermicro rack rails - they are not strictly required, but the rack rails can rattle a little bit when attached only by the latching mechanism. the screws make a solid connection between the rack and rails. i'm a little OCD so like to make sure my rails are solidly connected. when i buy used supermicro rails off ebay, they almost never come with the hardware. the picture is from a rail kit that I got that was brand new so I could see what hardware it normally comes with; figured i would use that info to just buy the hardware separately.