Seat Rail/Floor Bolt Mount | 21" Rigid Aluminum Neck | Phone Holder

Tackform Enduro Series 21" Seat Rail / Floor Mount for Cell Phones.

This is a heavy-duty, commercial-grade mounting solution backed by a lifetime warranty. This is commonly used in commercial trucking, contractor vehicles, and municipality.

This gooseneck is made from a rigid 10mm thick aluminum rod. The rigid aluminum goosenecks are better suited when you want to have a fixed mounting location without frequent repositioning. The 3.75" arm at the top of the gooseneck has dual omnidirectional ball and socket joints allowing you to get dialed into the perfect position.

Vehicle Compatibility - Our TFEN-SR21-SPR has two different mounting brackets, the seat rail bolt bracket and the floor mounting plate.

The seat rail bolt bracket works on most vehicles that have an accessible floor bolt. This is not compatible with all vehicles so we recommend checking your floorboard to make sure you have clear access to the bolt - Please reference the product graphic to get a better idea of mounting options. The mounting bracket can be rotated so you can mount on vertical or horizontally positioned floor bolts.

This kit also comes with a second mounting bracket used for other install mounting applications when you don't have an accessible seat rail or floor bolt.

Phone Compatibility - This cradle will hold all phones under 3.4" wide to 5" thick. 

Customer Reviews

Based on 8 reviews

I was tired of trying the usual phone holders. I didn’t want to glue anything to the dash of my new truck and suction cups never hold very long. When I saw this one, I knew I would have it from now on. Easy to mount and basically indestructible. It doesn’t block my vents and is right at my fingertips. Highly recommend this holder


This is the best on the market, quality, confidence, comfort and durability. he who knows of something good this is the best. 100% recommend it.

No doubt

Best phone holder I have ever owned works excellent in my 2019 Chevy 2500 work truck

High quality

High quality product. Easy to install. The shaft is strong, but can be manipulated to be formed into any position necessary.


I didn't know the goose neck was going to be as rigid as it is. Takes a lot to get it to bend correctly.