Does Audi roof crossbars have the T-Slot?

Does Audi roof crossbars have the T-Slot? t slot roof rack I build a lot of stuff at work from 8020, we buy it by the truckload I looked at using 1x1, and some of the two-sided profiles, to save top slot fishing charters I was thinking T Slot I have been looking at different options I read about

top slot fishing charters T Slot Bolts for Thule, Yakima Roof Rack Cross Bars, Platform, Cargo Basket, Stainless M6 M8 x 30mm35mm65mm Square T Track Bolt Adapter

trik judi slot I made a dozen roof rail brackets from 1 stainless bar stock and 14-20 machine screws tapped and welded Also hinged one side of the panel Bike Rack-Roof Rack Kit Adapter; Used to Mount Bike Rack Into T-slot Crossbars · Quick Overview · Product Description · Product Tags