Hi Will. I talked to the owner of the T-REX design and he said that they insert the T into the end of the timber. No holes are in the wood or connector yet. Takes a long pilot steel bit and drills through the wood until it hits the metal. This marks the metal. Pulls the metal from the timber and drills a 1/2" hole through it. Then drills 1/2" holes into the wood but not all the way through to the other side. THEN ONCE BACK TOGETHER HE INSERTS A 1/2" aluminium pin. Either way there is a potential big problem if the post that are attached to it are green lumber. Won't allow for any shrinkage with out breaking something or pull out GRKS.
