Slot width on 20x20 aluminium profile

[drobnjak]

Hi,

What is the slot width on the "Slotted Aluminum Extrusion - 20mm x 20mm - 610mm long"? Is it 4mm or is it wider?

thanks in advance

[adafruit_support_rick]

I don't have one here to measure, and the only other information I have is from the product page.
For want of anything else, I measured the picture. After scaling from the picture size, the slot looks to be 6mm

[drobnjak]

Thanks, it seems that 6mm is standard.