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8.5mm to 20mm Double Ball Adapter | For Garmin Dash Cam | 20 Series


Compatible With:

Garmin Dash Cam™ 45 / 46 / 47
Garmin Dash Cam™ 55 / 57
Garmin Dash Cam™ 65W / 66W / 67W
Garmin Dash Cam™ Tandem
Garmin Speak™ & Garmin Speak™ Plus


  • 8.5mm to 20mm Ball Adapter: Although this double ball is compatible with our 20 Series socket system, the 8.5mm to 20mm double ball adapter allows you to quickly mount your Garmin Dash Cam or any other device that accepts an 8.5mm ball. Upgrade your existing plastic mount to a sturdy all-aluminum mount from Tackform.
  • Precision Engineering: Crafted from high-quality aluminum, our 8.5mm Garmin dash cam double ball adapter boasts a CNC machined finish for unmatched durability and precision.
  • Tackform 20 Series: Specifically designed for compatibility with Tackform’s 20 Series Platform, revolving around the 20mm ball and socket system. While compatible with other 20mm products, our parts stand out for their tested durability and engineered load capacities, featuring a safety factor not guaranteed by other manufacturers. Please Note: Not suitable for 25.4mm / 1” / B-Sized balls.



At Tackform, we are committed to providing you with top notch support.
If you have any questions or concerns about your order, please don't hesitate to reach out to our knowledgeable support technicians.

Our customer support team is available Monday through Friday 9:00 AM - 5:00 PM.


How long will it take to get my order?

  • USPS and Ground orders ship the same or next business day.
  • FedEx Express orders placed before 2 PM CST will ship same business day.
  • International orders, wholesale, and large bulk orders ay take an additional 1-2 business days for processing.

What shipping carriers do you use?

  • USPS
  • FedEx

Where do you ship from?

  • Tackform HQ (Addison Illinois 60101)

Can I return my product?

Of course, Tackform has a flexible 30 day return policy. You can find the full details by clicking here -> RETURNS


If we still haven't answered your questions, you can contact us below and we will get back to you as soon as possible.

"We're dedicated to providing you with the best possible shipping experience and we're here to help you in any way we can. Thank you for choosing Tackform. We look forward to serving you"

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