Rubber mounts for Jesse bags
That's industrial hardware, so I'd look at McMaster-Carr, Grainger, or MSC.
Here's a link to McMaster's page... https://www.mcmaster.com/rubber-bumpers/unthreaded-bumpers-6/
► Pay special attention to the "Mounting Surface Height" in the third column. I believe you want one with a steel washer in the bottom, so only order the ones with 1/16" listed as the height.
► Second most important dimension is the "Height" in the second column.
Hope this helps.
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