The head of the carriage bolt holds it in the slot and the squared off section on the head keeps it from twisting when you thread a nut on it. One of the most accessible ways to go is measure the slot size then head off to the hardware store and see if you can match up a stainless carriage bolt.
They may have the T-Bolts or T-nuts that are designed for their extrusion rail slots. You may want to contact Fiamma USA directly, they are quite helpful. There is two different ways to go to get to your desired end goal:ġ) You can go with a T-bolt as you describedīoth the T-bolts and T-nuts come two different versions, twist in or end feed.
