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Rich, these casters have a shaft that can fit into a hole bored, say, in the base of your cabinet. But it is best to use a supplemental hardwood block under the cabinet bottom glued and screwed at each corner with a hole in it. You can get away with 3/4” plywood if usage is not hard. You can get a metal sleeve, or make one from copper pipe, as a bushing to line the hole to improve strength and wear. But unless it is in really high use this is probably not necessary. Most likely, in moderate usage, I’d line the hole with superglue wiped in (with or without the shaft in place) to strengthen it if necessary. But in reality, you would be better off using these for an office chair rather than a cabinet. In a cabinet, casters with a mounting plate with 4 screws would be better and stronger, especially to resist lateral (sideways) forces in moving over a rough floor or rug. These are intended for use where space for mounting is limited and material strength is strong, such as the hardwood legs of a chair or metal furniture; but with imagination, you can use them almost anywhere.
The universal caster set, it can use on any cabinet weight less than 150 lbs.