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Universal J-Mount - 40-inch

40-inch Universal J-Mount

The unique design of our universal J-Mount allows you to get your TV antenna higher than standard 18” poles allow. These taller mounts are suited for most off air antennas and will attach to any flat surface including a roof, fascia, side of house, or deck rail.


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The unique design of our universal J-Mount allows you to get your TV antenna higher than standard 18” poles allow. These taller mounts are suited for most off air antennas and will attach to any flat surface including a roof, fascia, side of house, or deck rail.

SKU #: STM1000
DIMENSIONS: 40" mast; 1 5/8" outside diameter, 1 1/2" inside diameter
INCLUDED: Mounting brackets, lag bolts, sealing pads
COMPATIBILITY: Universal mount; all antennas
FEATURES: Can be mounted on vertical or horizontal surfaces; Weather-resistant, powder-coated galvanized steel
COLOR: Black
WARRANTY: 90-day warranty on parts
Universal J-Mount - 40-inch is rated 4.4 out of 5 by 40.
Rated 5 out of 5 by from The Heavy duty version This antenna mast is a much different animal than the one that came packaged with the antenna itself. All around heavier gauge tubing and mounting plate. I ordered it because I need the 40 inch length afforded by this version in order to clear my roofline. One thing for antennas direct to consider is offering the customer their choice of mast when they place their initial order (I believe there are three lengths, which include the original). Even if a person had to pay a little more for an upgrade, they'd be better off since they would have the right unit from the beginning, and would avoid the waste of a separate, unusable mast rattling around in the garage or going in the trash.
Date published: 2016-02-12
Rated 4 out of 5 by from 40 in J-Mount Great roof mount for OTA antenna. I thought be easier to mount the base to the roof first. Otherwise it would be hard for one person to mark, drill holes, screw base to the roof with the J-pole still attached. But then its a bit tricky to get the J-pole bolts adj bolts in place due to having to insert them from the inside of the J-pole. Aa better design might be to weld the nuts on the inside of the tube so one could easily insert the bolts from the outside.
Date published: 2015-10-21
Rated 4 out of 5 by from Good Mount.. But.. I wish the antennas direct people would have given me an option for mounting to my HIP style roof. It wasn't until I got up there I realized one panel facing north is pointing upwards and the south facing antenna panel is facing downwards. Not optimum for reception. Make sure if you have a slanting roof to shim one side or something to get the antenna facing straight instead of too much up or down. I used the DB8e antenna to get Milwaukee & Chicago. Before this, I was using a Mohu Leaf inside my living room and getting channels I can no longer receive with the DB8e.
Date published: 2016-09-05
Rated 4 out of 5 by from Exactly as described This is truly a universal mount and it's solid. I was able to position it exactly as I wanted it, mount it "upside down" from the image here, and then hang my antenna from it. Quick note: the base is relatively wide, so you have to make sure you have the flush side of a 2x4 or something about the same to mount this sucker.
Date published: 2015-10-17
Rated 5 out of 5 by from Very good mount The mount was easy to install although the directions were not too clear. I tried several different approaches until I was satisfied with the correct method to mount it. To my surprise the anchor bolts were included and self-tapping. It was not clear on where to place a grounding strap. I improvised.
Date published: 2015-10-27
Rated 5 out of 5 by from Works great! Awesome customer service! Roughly 50 miles to Mount Wilson. Receive awesome HD from CBS, NBC, FOX, KCAL and others. Antennas Direct customer service was awesome. Helped me choose the right antenna, and even used Google Maps to tell me where on my roof to mount, and what compass degree to point to. Thanks!!!
Date published: 2015-10-23
Rated 5 out of 5 by from Heavy duty Well made accessory for mounting the good size antenna I was using it for. We had a severe thunderstorm roll through here a while back with very violent winds and this thing held up pretty good. I did have to go up and re-tighten a couple of nuts but that's it.....
Date published: 2015-10-17
Rated 2 out of 5 by from only use if a tripod is not an option Antennas direct recommended this j-mount for my antenna that I was buying from them, so I got it. It lasted for about 6 months before last weeks 50 mph wind gusts that it ripped out partially from my roof. I replaced it today with a tripod, which is very secure because of its much larger foot print on the roofs surface. So my advice is don't install this if a tripod is a option for you.
Date published: 2017-03-12
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