[{"id":328488976558,"handle":"20-series-arm-components","title":"20 Series Arm Components","updated_at":"2025-08-17T06:04:50-05:00","body_html":"","published_at":"2025-03-26T10:45:44-05:00","sort_order":"manual","template_suffix":"","disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"Arm"},{"column":"tag","relation":"equals","condition":"Components"},{"column":"tag","relation":"equals","condition":"20 mm"}],"published_scope":"web"},{"id":332268830894,"handle":"20-series-arm-collection","title":"20 Series™ Arm Collection","updated_at":"2025-08-17T06:04:50-05:00","body_html":"","published_at":"2025-05-30T11:40:40-05:00","sort_order":"manual","template_suffix":"component","disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"20 Series Arm"}],"published_scope":"web"},{"id":34874228787,"handle":"20-series-20-mm-metal-ball-and-socket-spare-parts-and-components","title":"20 Series™ Spare Parts and Components (20mm Ball and Socket)","updated_at":"2025-08-17T06:04:50-05:00","body_html":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eTackform's 20 Series™ collection of products that revolve around a 20mm ball and socket system. These components are manufactured primarily out of CNC Machined Aluminum with the exception of some die-cast and composite parts. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThis system is made up of 3 core components which include Bases, Arms and Holders.\u003c\/p\u003e","published_at":"2020-05-13T12:33:35-05:00","sort_order":"manual","template_suffix":"component","disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"20 mm"},{"column":"tag","relation":"equals","condition":"Components"}],"published_scope":"web","image":{"created_at":"2022-06-03T05:51:56-05:00","alt":null,"width":1500,"height":750,"src":"\/\/www.tackform.com\/cdn\/shop\/collections\/20mm_Components_a29d2483-4f08-4206-9833-24650e9f3b62.jpg?v=1655312114"}},{"id":332611158190,"handle":"20-series-track-collection-arms","title":"20 Series™ Track Collection - Arms","updated_at":"2025-08-17T06:04:50-05:00","body_html":"","published_at":"2025-06-11T12:10:05-05:00","sort_order":"manual","template_suffix":"","disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"20 Series Track Arms"}],"published_scope":"global"},{"id":153019121803,"handle":"all-products","title":"All Products","updated_at":"2025-08-17T06:04:50-05:00","body_html":"","published_at":"2020-05-13T12:33:34-05:00","sort_order":"best-selling","template_suffix":"","disjunctive":true,"rules":[{"column":"title","relation":"not_contains","condition":"ALLPRODUCTS"}],"published_scope":"web"},{"id":297478324398,"handle":"brake-clutch-mount-builder-arm","updated_at":"2025-08-17T06:04:50-05:00","published_at":"2023-09-11T14:42:24-05:00","sort_order":"manual","template_suffix":"","published_scope":"web","title":"Brake \/ Clutch Mount Builder - Arm","body_html":""},{"id":301398655150,"handle":"duralock-series","updated_at":"2025-08-17T06:04:50-05:00","published_at":"2023-12-28T16:38:50-06:00","sort_order":"manual","template_suffix":"","published_scope":"web","title":"DuraLock™ Series","body_html":""},{"id":305571987630,"handle":"bc3-series-bar-mount-collection","updated_at":"2025-08-17T06:04:50-05:00","published_at":"2024-03-26T20:45:18-05:00","sort_order":"manual","template_suffix":"","published_scope":"web","title":"Motorcycle - All","body_html":""},{"id":313173409966,"handle":"motorcycle-duralock-arms","updated_at":"2025-08-17T06:04:50-05:00","published_at":"2024-06-26T10:19:57-05:00","sort_order":"manual","template_suffix":"","published_scope":"web","title":"Motorcycle - DuraLock™ Arms","body_html":""},{"id":328534491310,"handle":"quick-order","title":"Quick Order","updated_at":"2025-08-17T06:04:50-05:00","body_html":null,"published_at":"2025-03-27T12:51:10-05:00","sort_order":"best-selling","template_suffix":"quick","disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"0"}],"published_scope":"web"}]
["20 mm","20 Series Arm","20 Series Track Arms","Arm","Components","Dealer","Shop Arms"]
EXPRESS ORDERS PLACED BY 2PM CENTRAL TIME SHIP THE SAME BUSINESS DAY, GROUND ORDERS SHIP SAME OR NEXT BUSINESS DAY
HASSLE FREE RETURNS & MONEY BACK GUARANTEE
15% DISCOUNT FOR MILITARY PERSONNEL, FIRST RESPONDERS, TEACHERS, AND GOVERNMENT EMPLOYEES
This component connects Tackform's aluminum dovetail to Tackform's 20mm ball.
Premium Materials: Real Black Anodized Aluminum. Glass Filled Resin Knob Molded over Stainless steel threaded inserts.
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.
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: This part is not compatible with 25.4mm / 1” / B-Sized ball systems or 1.5" ball and socket system parts.
20mm Socket with Anti-Theft Knob | DuraLock™ 20 Series | Black
Price
$10
BUILD YOUR OWN KIT
Tackform kits are built with a compatible BASE, ARM, and HOLDER. Simply add the arm component above to cart, and then select your add-ons below to build the perfect mount. Looking for ideas on what to build? Check out our collection of pre-built kits.
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.
I continue to be impressed with Tackform they are super high-quality products and a brand that I can trust. This purchase was to add an additional tack form phone holder to my bar clamp. I have a iPhone 13, the tax form phone holder along with this base hold my phone perfectly. I’m currently not using this on a vehicle, it is attached to my child’s wheelchair and it’s very handy for holding phones when running errands with my child
K
Kyle J. (Stuart, US)
Great products and customer service
I like being able to pick and choose from different parts to make up a product I want. Customer service is excellent too. I dropped a screw down in my bike and it went into the great unknown. I contacted customer service and they sent me new screws at no charge. Thanks you!
T
Tony R. (Nashville, US)
Best customer service along with the best products. A+++ experience.
Head and shoulders above the rest.
Product A+
Customer service A++
The only phone mounts I use and I have it in my f250, on my FXLRS, Ultra Limited and Fat Bob.
R
Ray C. (Toronto, CA)
Amazing mount
I’ve had a lot of phone mounts stolen but this by far with the anti theft screws is game changer I can sleep better at night 🤣
M
Matthew Y. (Powell, US)
20mm Socket with Anti-Theft Knob | DuraLock™ 20 Series | Black
I recently purchased this part (and a couple other complimentary pieces) from Tackform for my BMW K1600GT. High quality parts that work perfectly for mounting my iPhone and great customer service in helping me match up the right kit. Thanks.