Summary

The plastic piece on my tripod broke.
This is a beefier replacement for it.

Instructions

The tiny screws are easy enough to find just about anywhere, if you don't still have the ones that fit the tripod.
You'll need 13/64 outer diameter #8 sex bolts to attach the pivot pins after drilling out the rivets that are attached to the broken plastic piece. I picked some up from mcmaster carr, search for "low profile binding bolts" sized to fit 1 1/4" thick material.

Use some loctite on the threads when assembling, and don't over tighten so the it can hinge freely.

Replacement plastic support/connector for a Craftsman dual worklamp tripod