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A square (or rounded metal) stem caster is designed for solid square or round metal legs rather than hollow tubing, using a socket-style friction fit rather than an expanding or grip mechanism.
Common on metal-frame furniture, workstations, and shop equipment where the leg itself is solid stock rather than tube — the stem shape has to match the leg’s cross-section (square vs. round).
Metal-frame furniture, workbenches, and shop equipment with solid (not hollow) legs.
Mismatching square vs. round. A square stem won’t seat properly in a round socket or vice versa — confirm the leg’s actual cross-section before ordering.
Browse our Square and Rounded Metal Stem for real specs, capacities, and pricing.
How do I know if I need square or round stem?
Check the cross-section of the equipment leg or existing socket — square stems fit square sockets, round stems fit round ones.
Can a square stem work in a round socket?
No — the shapes need to match for a secure, properly seated fit.
