Easy Flag Mounting Clamps

Hanging a flag neatly can be harder than it seem, especially if your flagpole doesn't come with proper mounting hardware, or if you're not good at tying knots. Recently I received a flag and pole from my in-laws to proudly display at my home, but ran into this exact issue. That’s why I designed these easy-to-use 3D printable flag clamps.

These clamps make it simple to:

• Secure your flag tight and straight for everyday display.
• Lower the flag to half-mast on May 4th (Dutch Remembrance Day) with ease and respect.

There are two versions of the clamp:

• Open version – Perfect if your flag has sewn loops (eyelets) or hooks.
• Closed version – Ideal for tying off with a rope or cord if your flag has no built-in loops.

They attach firmly to the flagpole using a tool-less hand-tightening mechanism and feature sturdy hooks for attaching your flag. Switching between full-mast and half-mast with ease.

What's Included:

• 28.5mm diameter – Open version
• 28.5mm diameter – Closed version
• 30mm diameter – Open version
• 30mm diameter – Closed version

If your flagpole has a different diameter, feel free to send a request! I’ll be happy to upload other sizes upon demand.

Important Note:

After printing, the thread on the cap may feel a bit tight. I recommend fully screwing the cap onto the base the first time to help the threads settle in and smooth out. This makes future use much easier and ensures a better fit.

Material Recommendation:
I printed the clambs in PLA, which is perfectly suitable for this purpose. Even though PLA isn’t highly resistant to water or heat, that’s not a problem here, these clamps are only used outdoors occasionally, for short periods. They should hold up just fine under typical flag-flying conditions. Feel free to use other materials for your print!

Why print this?

• Improves the look of your flag display – no more sagging or flapping.
• Enables respectful half-mast lowering without hassle.
• Customizable for any flagpole size.
• Designed for quick, strong, and simple attachment.

Please leave a like or comment if you find it useful—and share a photo of your printed version in action!