FIN SCREWS (Inflatable)

Lost your fin screw at the beach? Yeah, it happens to everyone.

These replacement thumbscrews and washers install your inflatable paddleboard fin without tools. Just hand-tighten and you're ready to paddle. Available in 2-pack or 5-pack because you know you're going to lose them again.

What You Get

• Thumbscrew and square washer set for installing fins in inflatable SUP fin boxes. No screwdriver, no wrench—just hand-tighten and go.
• Tool-free installation means you can swap fins or reinstall them at the beach without carrying tools in your gear bag.
• 2-pack or 5-pack options because these things disappear. Get the 5-pack if you're realistic about losing small parts.
• Works with inflatable paddleboards that use standard fin box systems with thumbscrew attachment.

Why You Need Spares

Fin screws are small, easy to drop, and have a habit of disappearing into sand, water, or the bottom of your car. If you've ever gotten to the beach and realized you're missing a fin screw, you know why having spares matters.

The thumbscrew design means no tools required. Hand-tighten it into the fin box and you're done. This is crucial when you're at the beach and don't have a toolbox handy.

The 2-pack covers immediate replacement needs. The 5-pack is for people who are honest about losing small parts and want to keep spares in the car, garage, and gear bag.

Common Questions

Will these fit my inflatable paddleboard?
They fit standard inflatable SUP fin boxes that use thumbscrew attachment. If your board came with a thumbscrew fin system, these will work.

Do I need tools to install these?
Nope. That's the whole point of thumbscrews—you hand-tighten them. No screwdriver or wrench needed.

Should I get the 2-pack or 5-pack?
If you just need to replace one you lost, get the 2-pack. If you're smart and want spares for next time, get the 5-pack.

Will these work on rigid paddleboards?
These are specifically for inflatable paddleboards with thumbscrew fin boxes. Rigid boards typically use different fin systems.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

For complete details about Proposition 65, visit our Proposition 65 Warning page.