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SKU: B20-4LM

Tackform Quad Lock Base Adapter - 20mm Metal Ball with Quad Lock 360 Interface

$12.00

180-Day ReturnsOn uninstalled, unused parts Real humans who wheel(920) 249-7744 PayPal Credit acceptedFinancing option at checkout Secure checkoutEncrypted payment
Warranty Information

Vendor warranty summary

Tackform Warranty

At a glance: Lifetime on metal parts, 3 years on plastic, 1 year on electronics

This is Tackform's warranty, not an NVMOS policy. We've summarized it in plain English to save you a search. The manufacturer's official terms always govern and can change without notice. Last reviewed on nvmos.com: October 4, 2026.

Coverage by product

Product or component Coverage
Metal parts Lifetime
Plastic/ABS parts 3 years
Electronics 1 year
  • Keep your NVMOS order confirmation — proof of purchase is required.

What's covered

  • Tackform mounts and their parts bought from Tackform or an authorized reseller
  • Only the defective component is replaced, not the whole system

What's not covered

  • Devices you attach (phones, GPS units, tablets)
  • Abuse, misuse or exposure to extreme temperatures
  • Normal wear and tear
  • Modified or improperly used mounts
  • Discontinued parts with no available replacement

How to make a Tackform warranty claim

  • Email clear photos of the mount and the failed area
  • Explain how and when it failed
  • Include proof of purchase (order number, Amazon order or receipt) and your shipping address
  • A small shipping charge applies based on part weight; international customers pay all shipping

Tackform contact: Email: support@tackform.com · Claim page / support

Bought it from NVMOS? Start with us.

Have your order number and a few photos of the issue ready, then call real humans at (920) 249-7744 or send us a message. We'll tell you whether the claim goes through us or straight to Tackform, and help it along either way.

Shop Tackform at NVMOS

See all Tackform products, lead times and FAQs →

Disclaimer: The information on this page describes Tackform's own warranty policy. It is not a warranty offered by NVMOS (No Visible Means of Support LLC). Manufacturers update their terms at any time; we review these pages periodically, but the manufacturer's current official policy is the one that applies to your claim. Source: Tackform official warranty information. Last updated on nvmos.com: October 4, 2026. See our return policy for NVMOS's own terms.

About the brand

Tackform

Tackform has built heavy-duty device mounts in Addison, Illinois since 2012. NVMOS carries their TRAXX dash brackets, 20 Series phone mounts (including MagSafe), tablet and monitor holders, CB mic holders, camera holders and bases for trucks, vans and off-road rigs where the phone needs to stay put.

Based in: Addison, Illinois · Founded: 2012 · Lead time: In-stock ships in 24–48 hrs

Tackform warranty: Lifetime on metal parts, 3 years on plastic, 1 year on electronics. Read the full summary

Warranty terms are set by Tackform, not NVMOS, and can change. Bought from us? Call (920) 249-7744 and we'll handle the claim with the brand.


This adapter is for people already running Quad Lock who want to hang the phone off Tackform's 20mm ball-and-socket arms. It has a Quad Lock 360 interface on one side and a 20mm metal ball on the other, so it converts a Quad Lock base into a 20 Series connection in a few seconds.

It goes onto your existing Quad Lock 360-compatible base: suction base, bar clamp, adhesive base or similar. Full 360-degree indexing is retained, so you can still rotate the phone the way you do with Quad Lock now. From there, pair it with Tackform DuraLock arms and 20 Series holders to place the phone where you want it.

Fitment

Not tied to any vehicle. It works with Quad Lock 360-compatible bases. Tackform specifically warns that it is not compatible with Quad Lock 360 heads.

What's included

The adapter only. Quad Lock bases and other accessories are not included, so you need to own a Quad Lock base already.

In practice this is a way to keep a Quad Lock phone setup you already like while gaining the reach and positioning options of Tackform's arms. Because the connection is a standard 20mm ball, the same adapter can move between mounts as you change vehicles or bikes, as long as each one has a compatible 20mm socket.

Questions before you order?

Fitment questions are easier to settle before the box ships. Call or text Carl & Anton at (920) 249-7744 or use the chat — real humans in Sheboygan, Wisconsin, not a call center.

Specifications

  • Brand: Tackform
  • Part number: B20-4LM
  • Ball: 20mm metal
  • Interface: Quad Lock 360 base
  • Not compatible with: Quad Lock 360 heads
  • Quad Lock bases and accessories: not included

Tackform Quad Lock Base Adapter FAQs

Does it include a Quad Lock base?

No. You need your own Quad Lock 360-compatible base.

Will it work with a Quad Lock 360 head?

No. Tackform states it is not compatible with Quad Lock 360 heads.

Which bases work?

Quad Lock suction base, bar clamp, adhesive base and other Quad Lock 360-compatible bases.

What does the ball connect to?

Tackform 20 Series 20mm sockets, including DuraLock arms and 20 Series holders.

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