[Al Skierkiewicz]

One needs to read the Q&A for specific answers. This is but one in the "other parts and materials"...

This is in regard to the original question in post #2.

A: It is impossible for us to list and/or rule on all compatible or incompatible fasteners. However, information about the intent of the rule should provide sufficient guidance.

Rule <R5>c13 allows "compatible mechanical fasteners (nuts, bolts, screws, etc.)." The intent of this rule is to allow teams to use fasteners from any supplier that are substantially the same as TETRIX fasteners. Compatible fasteners are characterized by using the same thread characteristics as TETRIX fasteners. For example, an acceptable substitute for the TETRIX 6-32 thread, 1/2" length socket head cap screw is a 6-32 thread, 3/4" length, button head cap screw purchased at a local hardware store.

Threaded rod with the same thread characteristics as TETRIX fasteners is basically a headless screw and would be an acceptable substitution as long as it is used as a fastener and not as a structural element.