new tree suit platform: details on metal piece that holds strap to posts?

[raisins]

I've seen a few pictures of the new tree suit platform and there are metal pieces on both posts (that aren't there on the version I have) that seem to trap the strap. How are those on there? Is there a bolt all the way through the post or just self-tapping metal screws? Are there two screw or bolts per metal strap holder and the strap is trapped below the metal piece and then snugged down with those? Just curious because I am probably going to custom order a tree suit without the teeth and maybe without that extra piece and holes, but might change my tune. I know I can always call Mark, and have spoken with him before, but I thought I'd ask here first. Thanks.

 

[atwoodnative]

See photo. Screw does not go all the way through. It is handy as it holds the strap which is nice when cinching down. You can always take off if you don't like. Does it cost more if it comes with them?