Tackform 4.25" Dual 26mm Socket Arm with Anti-Theft Knobs - DuraLock 26 Series - Black
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
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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 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
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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 is a 4.25 inch dual socket arm from Tackform's DuraLock 26 Series, finished in black and listed as AR26-2081. It has a 26mm socket at each end, so you can link a 26mm ball on the base to a 26mm ball on the holder. Overall length is 4.25 inches, and ball center to ball center is 3.25 inches.
Tackform's dual socket design gives the largest range of articulation among its arms, which matters when you are trying to line up a screen or phone in a cramped cabin. The anti-theft knob is optional and patent pending. Tackform says it can help prevent snatch and grab situations on motorcycles, SxS and similar environments, and it also stops the ball slipping out of the socket if the knob has not been tightened properly.
Fitment
Universal. The arm works with parts in Tackform's 26 Series, built around the 26mm ball and socket. Tackform states it is not suitable for 1 inch, B-size or 25.4mm balls, so check what ball your holder and base use before ordering.
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
Tackform 4.25" Dual 26mm Socket Arm with Anti-Theft Knobs FAQs
How long is the arm?
It is 4.25 inches overall, with 3.25 inches from ball center to ball center.
What does the anti-theft knob do?
It is optional. Tackform says it can help deter snatch and grab theft, and it keeps the ball from slipping out of the socket if the knob is not properly tightened.
Does it fit 1 inch B-size balls?
No. Tackform states it is not suitable for 1 inch, B-size or 25.4mm balls.
Is it vehicle specific?
No. It is a universal 26 Series component.
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