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Wire Shelving Casters · 3" and 5" · Threaded and Grip Ring Stems

Diameter: 3, 5 inStem: 3/8 in threaded, grip ringCapacity: 90 lb each, 360 lb per set of 4
Casters for wire shelving posts. The 3 in thermo rubber swivels have a 3/8 in threaded stem that replaces the post leveler, sold singly, as a set of four locking casters or as two locking and two swivel. The 5 in polyurethane swivels with brake have a grip ring stem that snaps into the post tube. The listings give the post tube inside diameter as about 0.845 in.

Wire Shelving Casters: buying guide

Wire shelving casters in two mounts: 3 in thermo rubber swivels on a 3/8 in threaded stem that replaces the post leveler, and 5 in polyurethane grip ring casters with brake that push into the post tube.

3/8 in threaded stemGrip ring stem90 lb each, 360 lb per setLocking options
▶Watch: Wire Shelving Wheels & Caster Installation TutorialView Video ↓

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Two ways to mount

Caster Stem Packs Rating
3 x 7/8 in thermo rubber swivel 3/8 in threaded, replaces the leveler Single, set of 4 locking, or 2 locking and 2 swivel 90 lb each, 360 lb per set of 4
5 in polyurethane swivel with brake Grip ring, fits the post tube Two listings See listing

From product titles, fields and descriptions [S1].

Most wire shelving posts have a tube with an inside diameter of about 0.845 to 0.846 in at one end and a 3/8 in threaded leveler at the other [S1]. Unscrew the leveler and thread in a 3/8 in stem caster, or push a grip ring stem into the tube. The 3 in listings name Metro, Uline, Global Industrial and Eagle wire shelving among the systems they fit [S1].

How to choose

  1. Check the post. Threaded leveler: use the 3 in threaded stem casters. Open tube: use the grip ring casters.
  2. Check the load. The 3 in casters are rated 90 lb each, so a four-caster rack should carry no more than 360 lb including the shelving.
  3. Locks. Use at least two locking casters so a loaded rack stays put.

Wire shelving caster questions

What casters fit wire shelving?

Most wire shelving posts take either a 3/8 in threaded stem in place of the leveler or a grip ring stem in the post tube. Both are on this page.

How much weight do wire shelving casters hold?

The 3 in thermo rubber casters are rated 90 lb each, or 360 lb for a set of four.

Will these fit Metro shelving?

The 3 in threaded stem listings name Metro, Uline, Global Industrial and Eagle wire shelving. Check that your post has a 3/8 in threaded leveler.

Sources

  • [S1] CasterHQ product fields (rated load, diameter, width, wheel and core material, temperature range, mount) and product descriptions for the items on this page, pulled October 20, 2026.

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