1Zero Metal 4-Hole AMPS Base Mount with Anti-Slip 20mm (0.787") Ball for Car Truck, Includes 4X Bolts, 4X Washers, 4× Nuts for Easy & Secure Mounting fits All 20mm Socket Dash Mounting Arm Phone Mount
Condition: New
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Availability:
In Stock.
Arrives
Friday, Apr 24
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Style: AMPS Base Mount with 20mm Ball
Features
- Durable Metal Construction: Constructed with high-quality, laser-cut aluminum, our 20mm AMPS mount provides exceptional strength and reliability, perfect for demanding, rugged conditions
- Industry-Standard AMPS Pattern: Featuring a 4-hole, 30mm x 38mm configuration, our ball mount plate is fully compatible with all third-party AMPS plates and mounts
- Integrated Durable 20mm Mounting Ball: Built-in 0.787-inch metal-core ball ensures a secure, universal fit with standard 20mm socket arms. Enhanced with anti-slip TPU coating for wear resistance, shock absorption, and smooth 360 rotation for versatile viewing
- 20mm Compatibility: The 20mm AMPS ball is designed to work seamlessly with any 20mm (0.787 inches) mounting arms and cell phone car holders
- Package Includes: 1Zero 4-Hole AMPS Ball Mount, 4x Bolts, 4x Washers, 4 Nuts, Manual
Brand: 1Zero
Color: AMPS Base Mount with 20mm Ball
Compatible Devices: Smartphones
Compatible Phone Models: Fire Phone
Special Feature: Rotatable
Compatible Devices: Smartphones
Compatible Phone Models: Fire Phone
Additional Features: Rotatable
Unit Count: 1.0 Count
Item Weight: 0.07 Kilograms
Color: AMPS Base Mount with 20mm Ball
Brand: 1Zero
Model Number: EP-A04
Manufacturer: Epeius International Inc Limited
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Apr 24
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Style: AMPS Base Mount with 20mm Ball
It works I had no problem with it
Reviewed in the United States on September 2, 2025 by malisko
Style: AMPS Base Mount with 20mm Ball
Used this 1Zero metal AMPS base to mount a 20mm ball arm setup on my Honda DN-01, and it’s built like it was forged by angry engineers. The metal plate feels heavy and well-machined, and once bolted down it doesn’t move at all. I used the included hardware — bolts, washers, and nuts — and installation was quick and drama-free. The anti-slip design really grips, so whatever you mount on top isn’t going anywhere. Perfect for securing GPS units, CarPlay screens, or dash accessories that need to stay rock steady even on bumpy rides. Simple, strong, and worth every penny.
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Reviewed in the United States on October 12, 2025 by Rudeo
Style: AMPS Base Mount with 20mm Ball
This is a nice quality aluminum GoPro accessory mounting point has four holes and four nuts and bolts to allow mounting to GoPro mounting surfaces seems to be pretty functional. I’m not sure on the standard GoPro mounting accessory whole size but this works for the one I have seems to be pretty solid and good quality did not have an adhesive on the back as far as I know must be bolted.
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Reviewed in the United States on October 5, 2025 by Bradley
Style: AMPS Base Mount with 20mm Ball
If you’re looking for a robust, long-term mounting base for a phone, GPS, tablet or device in a vehicle, boat or rugged environment, the 1Zero Metal 4-Hole AMPS Base Mount with Anti-Slip 20 mm is a very good choice. It offers strong build quality, anti-vibration features, and wide compatibility with AMPS-pattern accessories.
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Reviewed in the United States on October 21, 2025 by Manly
Style: AMPS Base Mount with 20mm Ball
Ball mount for a Ram Style attachment. I use this on my boat as a mount for my GPS. I have a few placed around the boat, so I can mount my GPS any where. This is a high quality mount, came with screws which make it easy to install. Great value
Reviewed in the United States on October 11, 2025 by ShawnS
Style: AMPS Base Mount with 20mm Ball
I’m a big fan of 1Zero products, I’ve used a bunch of their mounting stuff and it’s always very solid. I like this one a lot, the hardware that comes with it is good, and it’s definitely doing the job it’s asked to do. My only concern is this isn’t (and for the price this doesn’t surprise me) a single piece, the ball is mounted to the plate with a single screw. So ultimately, the weight of whatever you’re mounting is on that single screw. It doesn’t seem that it’s going to give up soon, so again no real complaint, but it’s something to be aware of.
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Reviewed in the United States on August 23, 2025 by Kurtis
Style: AMPS Base Mount with 20mm Ball
Easy to install and fit perfectly. Good value and worked perfectly for mounting my cam on the dash.
Reviewed in the United States on September 25, 2025 by MrbWonka
Style: AMPS Base Mount with 20mm Ball
This is my review for the laser cut aluminum 20 mm ball for mounting devices in your vehicle. This is a well-made ball that features an anti-slip protection that your arms of your devices will be held securely in place. We’re just very important. With this ball, you can attach magnetic phone holders regular phone holders tablet holders, and your action cameras so anything that you can get an arm for that has a 20 mm socket you can attach to this wall it’s nicely made and sturdy. it’s aluminum so it’s relatively lightweight but I’m confident with the weight of this device. There will hold my electronic gear firmly in place. This is a nice base mount and I believe it will last a long, long time
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Reviewed in the United States on August 9, 2025 by Chief