Hmm well it looks like Tekno actually already includes it in their MT410 kit lol So you're covered. I wish they'd include it in the EB48SL kit ;-;

This is the part for reference though

TKR5161 ? V2 Adjustable Hinge Pin Brace ?A? block, 7075 CNC, EB/NB/ET/NT/SCT) ? Tekno RC, LLC.