Here we go!:
The Kidney Plate Checklist:
"For 501st approval:
- A separate kidney plate is present, split from the posterior armor. [emoji736]
For level two certification (if applicable):
N/A
For level three certification (if applicable):
-Squared cut-out sections at the lower left and right corners of the Kidney Armor.
The cut out is roughly 22 mm tall from the bottom and 22 mm in from the side.
-Three rivets, approximately 5/16"(8mm) diameter, are present on the left side of the kidney plate.
Note: The original rivets used for the TK armor were bifurcated rivets or split rivets.
-Rivets are equally spaced along the depth of the armor and about 10mm from the edge.
The heads are rounded or domed.
Note: Paperclip brads are not considered to have a domed head.
-Rivets are painted white.
Here is the link for the rivets I'm using:
Centurion Level Rivet sets For Sale.
https://r.tapatalk.com/shareLink?url=http://www.whitearmor.net/forum/index.php?/topic/34902-Centurion-Level-Rivet-sets-For-Sale%2E&share_tid=34902&share_fid=44557&share_type=t
Photo reference pics: