The clips are MKS steel clips. The nuts, I think, are pretty nice. The bolts themselves are small hex bolts and the clips even came with their own L-shaped hex wrench. So I'm going to assume that since the nuts have little integrated washers on one side, I can use the separate washers to put betw. the bolt and the clip. This also make sense in reference to an above statement, because they have wide holes to be able to adjust the side-to-side placement of the clips. I guess a washer would do well here to prevent the clip from pushing agains the bolt and loosening it.
But I also took apart my sidepull front brake yesterday for a cleaning, and there were these thin bronze or copper washers in between a LOT, but not ALL of the parts. There were even two washers between the two brake arms. I didn't get this--spacers? The washers seemed to be indiscriminately placed, but then again, I was paranoid that if I didn't put them back in the right places, the brakes wouldn't stay centered or something. They just seem to be very arbitrarily placed at times, I don't get it.
But thanks for the above info.