Dimensions for M3 Roof Rack T-Slots

[caliving]

Can someone please post the dimensions for the T-Slot for the Tesla Roof Rack? I am wondering if my BMW Bike Racks, which also used a T-Slot install would fit the Tesla rack. The dimensions for the BMW T-Slot was 1" wide by 1/2" height and a little more than 1/2" gap on top to hold attachments. The head of the screws that slide into the t-slop was flat and was little less the 1" by little more than 1".

 

[MJP.P3D-]

I don’t have the dimensions (all my rack accessories are in storage for the winter) but I can confirm that the Thule bike rack accessory from my prior Audis works perfectly. To the best of my knowledge, the T-Slot is a standardized dimension. All accessories that I’ve been using were purchased years ago before there was any Tesla in the garage.