3.5" Long Dual Socket Arm with Anti-Theft Knob | DuraLock™ 20mm Metal Ball System | Black

SKU: AR20-2070
Price
$20

ADD A COLOR ACCENT KIT

Billet Knob and Ring Accent Kits ( 2 Knobs, 2 Rings Included ) | Compatible with Tackform DuraLock™ Arms Only
Accent Kit Color:
Red
Change options
PRODUCT DESCRIPTION
  • 3.5" Arm Overall Length Measurement
  • 2.75" Ball Center to Ball Center Measurement
  • Optional Anti-Theft Knob: (PATENT PENDING) This arm, although not always necessary, has optional anti-theft features. This can (A) help prevent snatch and grab situations on your motorcycle, SXS, or other similar environments. (B) The ball cannot slip from the socket if not properly tightened.
  • Dual Socket Perfection: Although we have shorter arms available, the dual socket design will give you the largest range of articulation for perfect positioning.
  • Color Swap Compatible: Tackform offers a wide range of anodized billet aluminum knobs. This DuraLock arm is compatible with Tackform's DuraLock knobs, allowing you to customize your setup to match your vehicle. Black knob included.
  • 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 pride ourselves on fast order turnaround. Here are the details of our order processing and shipping policies:

Order Processing: Orders are packed and shipped Monday through Friday only.

FedEx Express Orders: Orders placed before 2 PM Central time ship the same business day. Please note that FedEx 2-Day shipping does not include Saturday or Sunday as shipping/delivery days.

USPS Orders: USPS orders ship the same or next business day unless otherwise noted at the top of the product description page.

Weekend and Holiday Orders: Orders placed on weekends and select holidays will be processed on the following business day.

Payment Issues: If we are unable to process your order due to inaccurate or incomplete payment information, order processing may be delayed by an additional 2 business days.

Bulk and Wholesale Orders: Orders over $250 and wholesale orders may require an additional 1-2 days for processing.

Urgent Deliveries: For orders with urgent delivery dates, feel to contact us and we will be happy to explore faster shipping options.

Please note, Tackform is not responsible for carrier delays and does not provide refunds in such cases.

TACKFORM 30 DAY NO HASSLE RETURN POLICY

If for any reason you are not satisfied with a product you purchased directly from Tackform.com within 30 days of purchase, we'll refund the full amount of the purchase price, less shipping, given that the following conditions are met:

  • Refund must be requested within 30 days of the invoice date.
  • Items must have been purchased directly from Tackform.com. For Amazon returns please contact us through the Amazon platform or shoot us an email at support@tackform.com with your Amazon order number.
  • All package contents must be complete.
  • All product must arrive back to us in like-new condition. If the products are damaged or show physical signs of wear you will not be refunded for those parts and they can be sent back to you at your expense. 
  • Wholesale and fleet orders may be required to pay return shipping based on agreed terms. 

If these conditions are met please go the following link to obtain a prepaid return label: www.tackform.com/returns

Shipping charges are not refundable.

When sending your items back, please get a receipt as proof that you dropped the item off with a shipping carrier. Please retain that receipt until you receive your refund.

If your item has a manufacturing defect in its materials or workmanship, please refer to https://www.tackform.com/pages/warranty-claims

INTERNATIONAL ORDERS

International customers are responsible for the cost of shipping for their returns. We strongly encourage International customers to consult with our sales team prior to checking out to ensure the appropriate item is purchased. 

 

TACKFORM LIMITED WARRANTY

This warranty is limited to Tackform product that were purchased directly from Tackform or a Tackform authorized reseller. This warranty is limited only to Tackform mounts and Tackform components. This does not include any device or devices attached or mounted to a Tackform mount. This includes but is not limited to your phone, GPS, tablet or other devices. This warranty does not cover any part that has been modified or used in any manner other than which it was intended. 

The Tackform warranty does not cover any part or product that has been abused, misused, has been subject to temperatures beyond ordinary weather conditions. If the defective part or product has been discontinued, we will suggest a suitable alternative. If an alternative is not available, the discontinued part is no longer covered under warranty.

Warranty Duration:

  • Metal Parts - Lifetime Warranty
  • Plastic or ABS Parts - 3 Year Warranty
  • Electronics - 1 Year Warranty

LIMITATION OF LIABILITY

Repair or replacement of this product, as provided herein, is your exclusive remedy. Tackform shall not be liable for any special, incidental or consequential damages, including, but not limited to, lost revenues, lost profits, loss of use of software, loss of recovery of data, rental of replacement equipment, downtime, damage to property, and third-party claims, arising out of any theory of recovery, including warranty, contract, statutory or tort. Notwithstanding the term of any limited warranty or any warranty implied by law, or in the event that any limited warranty fails of its essential purpose, in no event will Tackform’s entire liability exceed the purchase price of this product. Some states/provinces do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights and you may also have other rights that vary from state to state and province to province..

There is no upgrade on products, only replacement of defective components.

How To Make A Lifetime Warranty Claim:

  1. Take a Digital Photo - Make sure that the mount and the broken or defective section are clearly visible.*
  2. To the best of your ability please explain how and when the product failed.
  3. Provide proof or purchase – Examples of proofs of purchase include but are not limited to your order number from our website, your Amazon order number, or receipt from retail location.*
  4. Please Provide Shipping Address
  5. Email Above information to support@tackform.com

*Notes:

  • This warranty does not cover normal wear and tear over the lifetime of the product. There are no upgrades; only defective components will be replaced.
  • We will replace the broken component only and not the entire mounting system.
  • We will contact you for the small shipping charge. This number varies based on the weight of the replacement part.
  • Tackform will only warranty products purchased through Tackform Authorized Retailers.

INTERNATIONAL ORDERS

International customers are responsible for the cost of shipping for warranty related claims. We strongly encourage International customers to consult with our sales team prior to checking out to ensure the appropriate item is purchased. 

Thank you,

Dzine Products, LLC DBA Tackform – Limited Lifetime Warranty

PROBLEMS WITH THE WEBSITE?
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If the issue persists, don’t hesitate to contact us. Our support team will be happy to assist you.

3.5" Long Dual Socket Arm with Anti-Theft Knob | DuraLock™ 20mm Metal Ball System | Black

3.5" Long Dual Socket Arm with Anti-Theft Knob | DuraLock™ 20mm Metal Ball System | Black

Price
$20

BUILD YOUR OWN KIT

Tackform kits are built with a compatible BASE, ARM, AND HOLDER. Select your add-ons below to build the perfect mount, or explore pre-built kits.

ADD A BASE
Multi-Mount Adjustable Bar Clamp | 1/2" - 1" Bars | Billet Aluminum | 20mm Metal Ball
5.0
Multi-Mount Adjustable Bar Clamp | 1/2" - 1" Bars | Billet Aluminum | 20mm Metal Ball

Multi-Mount Adjustable Bar Clamp | 1/2" - 1" Bars | Billet Aluminum | 20mm Metal Ball

Price
$25
Multi-Mount Adjustable Bar Clamp | 7/8" - 1-1/2" Bars | Billet Aluminum | 20mm Metal Ball
Multi-Mount Adjustable Bar Clamp | 7/8" - 1-1/2" Bars | Billet Aluminum | 20mm Metal Ball

Multi-Mount Adjustable Bar Clamp | 7/8" - 1-1/2" Bars | Billet Aluminum | 20mm Metal Ball

Price
$30
Multi-Mount Adjustable Bar Clamp | 1" - 2" Bars | Billet Aluminum | 20mm Metal Ball
Multi-Mount Adjustable Bar Clamp | 1" - 2" Bars | Billet Aluminum | 20mm Metal Ball

Multi-Mount Adjustable Bar Clamp | 1" - 2" Bars | Billet Aluminum | 20mm Metal Ball

Price
$30
BC3 Universal Clamp for 7/8" to 1-1/4" Bars | Black | Combo 20mm Metal Ball and Dovetail | Bushings Included
5.0
BC3 Universal Clamp for 7/8" to 1-1/4" Bars | Black | Combo 20mm Metal Ball and Dovetail | Bushings Included

BC3 Universal Clamp for 7/8" to 1-1/4" Bars | Black | Combo 20mm Metal Ball and Dovetail | Bushings Included

Price
$30
BC3 Universal Clamp for 1-1/4" to 1-1/2" Bars | Black | Combo 20mm Metal Ball and Dovetail | Bushings Included
5.0
BC3 Universal Clamp for 1-1/4" to 1-1/2" Bars | Black | Combo 20mm Metal Ball and Dovetail | Bushings Included

BC3 Universal Clamp for 1-1/4" to 1-1/2" Bars | Black | Combo 20mm Metal Ball and Dovetail | Bushings Included

Price
$30
Cup Holder Mount | 20mm Ball
4.9
Cup Holder Mount | 20mm Ball

Cup Holder Mount | 20mm Ball

Price
$24.99
Suction Cup Mount | 3.5" Diameter | 20mm Ball
5.0
Suction Cup Mount | 3.5" Diameter | 20mm Ball

Suction Cup Mount | 3.5" Diameter | 20mm Ball

Price
$29.99
3/8" - 5/8" Bar Clamp Mount | Dual Type-B Connections | 20mm Ball & Dovetail/Flange
5.0
3/8" - 5/8" Bar Clamp Mount | Dual Type-B Connections | 20mm Ball & Dovetail/Flange

3/8" - 5/8" Bar Clamp Mount | Dual Type-B Connections | 20mm Ball & Dovetail/Flange

Price
$20
Universal Mega Clamp | Fits Bars up to 1.75" & Flat Surfaces up to 1.9" | Billet Aluminum | 20mm Metal Ball
Universal Mega Clamp | Fits Bars up to 1.75" & Flat Surfaces up to 1.9" | Billet Aluminum | 20mm Metal Ball

Universal Mega Clamp | Fits Bars up to 1.75" & Flat Surfaces up to 1.9" | Billet Aluminum | 20mm Metal Ball

Price
$35
Bar Clamp | Up to 2" Bars | 20mm Ball
4.6
Bar Clamp | Up to 2" Bars | 20mm Ball

Bar Clamp | Up to 2" Bars | 20mm Ball

Price
$39.99
AMPS Mount | No Hardware Kit | Aluminum | 20mm Metal Ball
5.0
AMPS Mount | No Hardware Kit | Aluminum | 20mm Metal Ball

AMPS Mount | No Hardware Kit | Aluminum | 20mm Metal Ball

Price
$13
AMPS Mount | Hardware Kit Included | Aluminum | 20mm Metal Ball | Version 3.0
5.0
AMPS Mount | Hardware Kit Included | Aluminum | 20mm Metal Ball | Version 3.0

AMPS Mount | Hardware Kit Included | Aluminum | 20mm Metal Ball | Version 3.0

Price
$16
Diamond AMPS Mount | No Hardware Kit | Aluminum | 20mm Metal Ball | Version 3.0
Diamond AMPS Mount | No Hardware Kit | Aluminum | 20mm Metal Ball | Version 3.0

Diamond AMPS Mount | No Hardware Kit | Aluminum | 20mm Metal Ball | Version 3.0

Price
$13
Diamond AMPS Mount | Hardware Kit Included | Aluminum | 20mm Metal Ball | Version 3.0
Diamond AMPS Mount | Hardware Kit Included | Aluminum | 20mm Metal Ball | Version 3.0

Diamond AMPS Mount | Hardware Kit Included | Aluminum | 20mm Metal Ball | Version 3.0

Price
$16
20mm Metal Ball with L-Track Connection
20mm Metal Ball with L-Track Connection

20mm Metal Ball with L-Track Connection

Price
$13
TRAXX™ - Slim Track Base with 20mm Metal Ball
4.9
TRAXX™ - Slim Track Base with 20mm Metal Ball

TRAXX™ - Slim Track Base with 20mm Metal Ball

Price
$15
TRAXX™ - Assault Track Base with 20mm Metal Ball
4.9
TRAXX™ - Assault Track  Base with 20mm Metal Ball

TRAXX™ - Assault Track Base with 20mm Metal Ball

Price
$16
TRAXX™ - Fast Track Base with 20mm Metal Ball
5.0
TRAXX™ - Fast Track Base with 20mm Metal Ball
ITEM ON BACKORDERSHIPS IN 2 WEEKS

TRAXX™ - Fast Track Base with 20mm Metal Ball

Price
$15
Multi-Mount Adjustable Bar Clamp | 7/8" - 1-1/2" Bars | Billet Aluminum | Dovetail/Flange
Multi-Mount Adjustable Bar Clamp | 7/8" - 1-1/2" Bars | Billet Aluminum | Dovetail/Flange

Multi-Mount Adjustable Bar Clamp | 7/8" - 1-1/2" Bars | Billet Aluminum | Dovetail/Flange

Price
$30
AMPS Mount | No Hardware Kit | Aluminum | Dovetail/Flange | Version 3.0
AMPS Mount | No Hardware Kit | Aluminum | Dovetail/Flange | Version 3.0

AMPS Mount | No Hardware Kit | Aluminum | Dovetail/Flange | Version 3.0

Price
$12
ADD A PHONE HOLDER
Enduro 20LITE Phone Cradle | 20mm Ball | Light Spring tension | For Semi Truck | Black
5.0
Enduro 20LITE Phone Cradle | 20mm Ball | Light Spring tension | For Semi Truck | Black

Enduro 20LITE Phone Cradle | 20mm Ball | Light Spring tension | For Semi Truck | Black

Price
$29.99
MagSafe Phone Holder | 20mm Metal Ball
5.0
MagSafe Phone Holder | 20mm Metal Ball

MagSafe Phone Holder | 20mm Metal Ball

Price
$25
Quad Lock MAG™ Head with 20mm Metal Ball (Non-Charging)
Quad Lock MAG™ Head with 20mm Metal Ball (Non-Charging)

Quad Lock MAG™ Head with 20mm Metal Ball (Non-Charging)

Price
$35
MagSafe Wireless Charger with Cooling Fan | 20mm Metal Ball
5.0
MagSafe Wireless Charger with Cooling Fan | 20mm Metal Ball

MagSafe Wireless Charger with Cooling Fan | 20mm Metal Ball

Price
$40
MagSafe Wireless Charging Phone Holder | 20mm Metal Ball
5.0
MagSafe Wireless Charging Phone Holder | 20mm Metal Ball
NEWMAGSAFE COMPATIBLE

MagSafe Wireless Charging Phone Holder | 20mm Metal Ball

Price
$35
Quad Lock MAG™ Wireless Charging Head with 20mm Metal Ball
Quad Lock MAG™ Wireless Charging Head with 20mm Metal Ball

Quad Lock MAG™ Wireless Charging Head with 20mm Metal Ball

Price
$60
Wireless QI Charger with Cooling Fan | 20mm Metal Ball
4.9
Wireless QI Charger with Cooling Fan | 20mm Metal Ball

Wireless QI Charger with Cooling Fan | 20mm Metal Ball

Price
$40
Quad Lock 360™ Wireless Charging Head | Twist to Lock | 20mm Metal Ball
Quad Lock 360™ Wireless Charging Head | Twist to Lock | 20mm Metal Ball

Quad Lock 360™ Wireless Charging Head | Twist to Lock | 20mm Metal Ball

Price
$60
Quad Lock 360™ Top Cap Head | Twist to Lock | 20mm Metal Ball
Quad Lock 360™ Top Cap Head | Twist to Lock | 20mm Metal Ball

Quad Lock 360™ Top Cap Head | Twist to Lock | 20mm Metal Ball

Price
$18
ADD A TABLET HOLDER
Tablet Holder | Spring Loaded Grip | 20mm Ball
4.8
Tablet Holder | Spring Loaded Grip | 20mm Ball

Tablet Holder | Spring Loaded Grip | 20mm Ball

Price
$25
Magnetic Tablet Holder | 20mm Metal Ball
Magnetic Tablet Holder | 20mm Metal Ball
NEWUNIVERSAL MAGNETIC

Magnetic Tablet Holder | 20mm Metal Ball

Price
$27
ADD A CB RADIO MIC HOLDER
CB Microphone/2-Way Radio Holder | 20mm Ball
4.8
CB Microphone/2-Way Radio Holder | 20mm Ball

CB Microphone/2-Way Radio Holder | 20mm Ball

Price
$25
Midland Magnetic CB Radio Mic Holder | 20mm Ball
5.0
Midland Magnetic CB Radio Mic Holder | 20mm Ball
Compatible with MXT275 & MXT575

Midland Magnetic CB Radio Mic Holder | 20mm Ball

Price
$30
CB1-20 - CB Microphone Holder with 20mm Metal Ball | 20 Series™ | Black
CB Microphone Holder | 20 Series | Black

CB1-20 - CB Microphone Holder with 20mm Metal Ball | 20 Series™ | Black

Price
$12.99
Snow Plow Controller Mount | 20mm Ball | Western Plow, Fisher, SnowEx, Blizzard
5.0
Snow Plow Controller Mount | 20mm Ball | Western Plow, Fisher, SnowEx, Blizzard

Snow Plow Controller Mount | 20mm Ball | Western Plow, Fisher, SnowEx, Blizzard

Price
$13
ADD A CAMERA HOLDER
Magnetic Radar Detector Holder | 20mm Metal Ball
5.0
Magnetic Radar Detector Holder | 20mm Metal Ball

Magnetic Radar Detector Holder | 20mm Metal Ball

Price
$20
Camera Holder | 1/4"-20 Screw With Tightening Ring | 20mm Ball
5.0
Camera Holder | 1/4"-20 Screw With Tightening Ring | 20mm Ball

Camera Holder | 1/4"-20 Screw With Tightening Ring | 20mm Ball

Price
$18
Action Camera Mount for GoPro and More | 20mm Ball | 20 Series
5.0
Action Camera Mount for GoPro and More | 20mm Ball | 20 Series

Action Camera Mount for GoPro and More | 20mm Ball | 20 Series

Price
$14
8.5mm to 20mm Double Ball Adapter | For Garmin Dash Cam | 20 Series
5.0
8.5mm to 20mm Double Ball Adapter | For Garmin Dash Cam | 20 Series

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

Price
$13
20mm metal Ball with 1/4"-20 Male and Female Connection | 2 in 1 Aluminum Camera Tripod Adapter | DuraLock™ 20 Series
5.0
20mm metal Ball with 1/4"-20 Male and Female Connection | 2 in 1 Aluminum Camera Tripod Adapter | DuraLock™ 20 Series

20mm metal Ball with 1/4"-20 Male and Female Connection | 2 in 1 Aluminum Camera Tripod Adapter | DuraLock™ 20 Series

Price
$12.99
ADD A SWITCH PANEL HOLDER
6 Gang Auxbeam Switch Panel Holder with 20mm Metal Ball
4.7
6 Gang Auxbeam Switch Panel Holder with 20mm Metal Ball

6 Gang Auxbeam Switch Panel Holder with 20mm Metal Ball

Price
$14
8 Gang Auxbeam Switch Panel Holder with 20mm Metal Ball
8 Gang Auxbeam Switch Panel Holder with 20mm Metal Ball

8 Gang Auxbeam Switch Panel Holder with 20mm Metal Ball

Price
$16
ADD A MONITOR HOLDER
AMPS Mount | No Hardware Kit | Aluminum | 20mm Metal Ball
5.0
AMPS Mount | No Hardware Kit | Aluminum | 20mm Metal Ball

AMPS Mount | No Hardware Kit | Aluminum | 20mm Metal Ball

Price
$13
Single T Fixed | 1 Prong (1T) Monitor Holder with 20mm Metal Ball
Single T Fixed | 1 Prong (1T) Monitor Holder with 20mm Metal Ball

Single T Fixed | 1 Prong (1T) Monitor Holder with 20mm Metal Ball

Price
$16
Tuner - Dual-T | 2 Prong (2T) Monitor Holder with 20mm Metal Ball
Tuner - Dual-T | 2 Prong (2T) Monitor Holder with 20mm Metal Ball

Tuner - Dual-T | 2 Prong (2T) Monitor Holder with 20mm Metal Ball

Price
$16
TPMS - 4T | 4 Prong (4T) Monitor Holder with 20mm Metal Ball
TPMS - 4T | 4 Prong (4T) Monitor Holder with 20mm Metal Ball

TPMS - 4T | 4 Prong (4T) Monitor Holder with 20mm Metal Ball

Price
$16
Garmin Mount Holder Combo - Don't know the socket size? No worries, Here's a deal on both.
5.0
Garmin Mount Holder Combo - Don't know the socket size? No worries, Here's a deal on both.

Garmin Mount Holder Combo - Don't know the socket size? No worries, Here's a deal on both.

Price
$15
Diamond AMPS Mount | No Hardware Kit | Aluminum | 20mm Metal Ball | Version 3.0
Diamond AMPS Mount | No Hardware Kit | Aluminum | 20mm Metal Ball | Version 3.0

Diamond AMPS Mount | No Hardware Kit | Aluminum | 20mm Metal Ball | Version 3.0

Price
$13
Vesa Holder | 75mm To 100mm | 20mm Ball
5.0
Vesa Holder | 75mm To 100mm | 20mm Ball

Vesa Holder | 75mm To 100mm | 20mm Ball

Price
$18
ADD A DROPDOWN / EXTENSION KIT
Extension/Dropdown Kit - Short Reach
Sold out
Extension/Dropdown Kit - Short Reach

Extension/Dropdown Kit - Short Reach

Price
$14
Quick Add
Extension/Dropdown Kit - Medium Reach
5.0
Extension/Dropdown Kit - Medium Reach

Extension/Dropdown Kit - Medium Reach

Price
$16
Quick Add
Extension/Dropdown Kit - Long Reach
Extension/Dropdown Kit - Long Reach

Extension/Dropdown Kit - Long Reach

Price
$20
Quick Add

NEED HELP?

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.

FREQUENTLY ASKED QUESTIONS

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 may take an additional 1-2 days for processing.
What shipping carriers do you use?
  • USPS
  • FedEx
Where do you ship from?

We proudly ship out our products from Tackform HQ in Addison, Illinois, 60101.

Can I return my product?

Of course, Tackform has a flexible 30 day return policy. You can find the full details of our return policy HERE.

Customer Reviews

Based on 20 reviews
90%
(18)
10%
(2)
0%
(0)
0%
(0)
0%
(0)
I
Ian H. (Los Angeles, US)
Better, nicer, and higher quality than RAM

Really nice stuff, I love how easy it is to both adjust and lock in. The aluminium balls have a really grippy texture that's also really nice looking. I love knowing that my magsafe charger (also tackform and awesome) isn't going to yeet my phone across the cab when I hit a bump on the trail.

T
Todd F. (Henderson, US)
Holds tight

2010 HD FLTRX. Very finicky about how the phone is positioned so it will charge. The new 3" locking pivot arm is different than the original one, in that it's not as flexible with the rotation. I went back to the original arm so I can better tweak my angles. It would have gained a ⭐ had it not been for that.

Hi Todd, did you adjust the bottom support leg on the holder? The coils for wireless charging may be misaligned if you're experiencing issues. The new arm takes a bit of force on the dovetail connection side to adjust its axis. This was intentional to secure that axis once you've found the right placement. Thanks!

M
Martin N. (Turlock, US)
Performs perfect

The 3.5" arm is the perfect length that I need! I just wish it hd the option to pick the nut colors. Now I have one red and one black......

B
Bob A. (Lubbock, US)
Fantastic way to safely hold my phone

I like the looks and quality of the phone holder. It holds the phone securely and is easy to use and adjust. Very happy with purchase.

R
Randal M. (Chicago, US)
2024 F150 Truck (Blue Cruise System)

Once the new extension arm was installed on the air vent mount and rotated towards the left, away from the center console screen - the Ford Blue Cruise worked and did not block the camera view. Blue Cruise system will not work with the arm vertical or leaning towards the center screen.