VERY HAPPY with this choice!
Casters from Amazon (M12 thread)
Skelang 4-Pcs Stem Leveling Machine Casters with Nylon Wheel, Retractable Workbench Caster, Loading Capacity 2200 Lbs
And 2" ?12 inserts from McMaster-Carr (ordered Friday night & arrived Monday afternoon (Cincinnati)
Links:
Casters:
https://www.amazon.com/gp/aw/d/B07ZD1T5NW?psc=1&ref=ppx_pop_mob_b_asin_title
Inserts: