Threaded stem casters feature a screw-in stem that threads into a tapped hole on your equipment frame. The most versatile mount style for chairs, furniture, light carts, and equipment with threaded holes. Easily removable for cleaning or replacement — just unscrew and swap. Available in 3/8"-16, 1/2"-13, and metric threads with rubber, polyurethane, TPR, and nylon wheels from 2" to 5".
Threaded stems are the most versatile mount style because they fit any equipment with a threaded hole — no drilling required. Unlike top plates (which require 4 bolt holes) or grip ring stems (which require a specific socket), a threaded stem screws into any tapped hole. Perfect for furniture frames, light carts, medical equipment, and any application where you need a permanent but removable mount.
CasterHQ stocks threaded stems in the most common light duty sizes: 3/8"-16 (standard for office chairs), 1/2"-13 (commercial furniture and equipment), and metric sizes (M8, M10, M12). Identify your thread size by measuring the diameter of your threaded hole or checking your equipment documentation. Most office chair wheels use 3/8"-16 — it's the universal standard for seating.
| Specification | Value |
|---|---|
| Stem Type | Threaded screw-in mount |
| Common Thread Sizes | 3/8"-16, 1/2"-13, M8, M10, M12 |
| Load Capacity | Up to 350 lbs/caster |
| Wheel Diameter Range | 2" – 5" |
| Wheel Materials | Rubber, Polyurethane, TPR, Nylon |
| Bearing Type | Plain, Ball, Precision Ball |
| Stem Length | 3/4" – 1-1/4" (adjustable lengths available) |
| Brake Options | Side Lock, Top Lock |
| Feature | Threaded Stem | Grip Ring Stem | Top Plate |
|---|---|---|---|
| Mount Method | ★ Screw into threaded hole | Press/snap into socket | Bolt to surface |
| Removability | ★ Easy (unscrew anytime) | Difficult (requires tool) | Moderate (unbolt) |
| Equipment Needed | ★ Threaded hole only | Socket mount point | 4 bolt holes |
| Versatility | ★ Works on any threaded hole | Specific socket size only | Fixed bolt pattern |
| Best For | ★ Chairs, furniture, healthcare | Furniture legs, tight spaces | Carts, shelving, platforms |
| Load Range | ★ Up to 350 lbs light duty | Up to 350 lbs light duty | Up to 350 lbs light duty |
These calculators apply to any caster application—even if you’re browsing a different category. Use them to estimate load rating per caster, select wheel material, and estimate push/pull force. Expand any tool for full analysis + a share-ready spec line.
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Load Calculator (dedicated)
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