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How to measure a Stem Caster

Guide to measure Threaded Stems, Grip Ring Stems, and Rubber Adapter Stems


Measuring Grip Ring Stem Casters for Chairs and Furniture: Example using a 7/16" Grip Ring Stem

  • The Stem Diameter should be: 7/16" = 0.4375"
  • Stem Diameter: 7/16"
  • Stem Length: 7/8"
To measure your Grip Ring / Friction Ring Stem Diameter use a 7/16" Wrench and it should fit nice and flush against the diameter of the stem. You could also get a 7/16" Drill bit and insert into the hole of the chair or leg and it that fits flush then any of our chair casters will replace your casters with ease.

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