This is my second gladiator shelf from Lowes. This one is for printers, so it needed a spool holder. I whipped up this very simple one and nut to hold my spools. Seems to work pretty well. The slat on the shelf is 58mm's high, so if yours is close, this might fit.

Shelf I have for reference: https://www.lowes.com/pd/Gladiator-EZ-Connect-72-in-H-x-48-in-W-x-24-in-D-5-Tier-Steel-NSF-Certified-Freestanding-Shelving-Unit/1000197487

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