2013 and 10-speed equals 6700. But it really doesn't matter. Check that the pads are hitting the rim squarely. It looks like the right-hand pad is half way into the spokes.

The small allen-head bolt on the right side is a centering screw. It's been loosened so much that it might fall out soon. You have to tighten this before that happens. Tighten it so you can't see the threads anymore, and give it an extra turn. Then re-center your caliper as Kontact told you to. Then tighten the allen-head mounting nut on the other side of the bridge.Then re-adjust the pad height so they both hit the rim squarely. Then fine-adjust the cable tension if necessary. Then fine-adjust the centering using that centering screw, so both pads hit the rim from opposite sides at the same time. You shouldn't have to give it more than a quarter turn in one direction or another.You can tell it's right when you feel a solid "thunk" of the pads hitting the rim simultaneously. Also, the rim won't move sideways when you apply the brake. And if you did everything right, you've done a better brake job than the average shop pro. The reason I instructed you to do it in this order is because that centering screw affects cable tension and pad level.