Attachment Types
At CasterTechnology we offer a wide variety of Attachments for your Casters. Browse our expansive attachment section to help find what you are looking for. Too many options? Not sure where to start? Contact us and let one of our trained service reps. get you headed in the right direction.
Special Stem Attachments
Here’s a breakdown of some special stem types used on casters—such as plain stems, ladder stems, and pipe threaded stems—and why you might choose them for specific applications:
1. Plain Stem
Description: A smooth, round, unthreaded stem.
Usage: Slides into a matching hole or socket, often secured with a set screw, friction fit, or adhesive.
- Simple and cost-effective.
- Common in light-duty furniture or carts with pre-fitted sleeves or inserts.
- Allows for quick installation and easy replacement.
2. Ladder Stem (Plan Stem)
Description: A stem with a series of ridges or “rungs” along its length, resembling a ladder.
Usage: Locks into matching detents or clips inside a socket, allowing for multiple height settings.
- Provides height adjustability.
- Ensures secure, non-rotating fit.
- Common in medical equipment, instrumentation carts, and modular furniture.
3. Pipe Threaded Stem (e.g., NPT)
Description: A tapered thread (typically National Pipe Thread – NPT) used to screw into pipe fittings or threaded sockets.
Usage: Screws into metal frames, machinery, or structural tubing with internal threads.
- Provides a tight, vibration-resistant fit.
- Ideal for heavy-duty, industrial, or permanent installations.
- Can be sealed with tape or compound for added security.
These stem types offer specialized functionality that goes beyond the standard grip-ring or threaded stems, making them ideal for custom equipment, precise height control, or high-strength industrial use.
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