Vance Industries QNUMSG 8-Pack Undermount Studs, Rectangle with Epoxy Glue

I struggled trying to figure out a way to better mound our drooping sink under a granite counter top. There were no channels on the sink for typical J-mounts from home depot. No wood to screw into under the granite. This system worked perfectly and is super strong. Be sure to use sand paper underneath on the granite and clean it well before you use the epoxy provided so it adheres super strong. Don't get in a hurry to mount the sink no matter what she says. The epoxy needs to cure 24 hours before you think about tightening them down.

Product was shipped quickly & great price, can't find this at your local hardware stores. Works great, however, the epoxy sticks great to my granite, but when I tightened them up (I put up about 6 of them to hold up a round sink, let cure for 1 day), some of them popped off, the granite underside of my counter is kinda rough (not polished like top surface) and the epoxy held, but a thin layer of the granite broke loose from itself, so I went ahead & put some epoxy around the the top rim of my sink as well and added a few more clips and it it's holding now. This sink also has a big disposal hanging underneath it adding to the weight, I added support under the insinkerator to relieve some of the weight to help hold it up. Don't know what else I'd use other than having someone come in & carve slots to hold anchor bolts. Hope this helps. This is definitely worth your try.

Our house was remodeled in 2006. In our new master bath we added a double sink vanity that consists of a marble counter top and under mount sinks. Unfortunately the installer chose to simply apply a large amount of adhesive to the outside edges of the sinks rather than adding studs. The adhesive recently dried up and flaked off of the marble allowing one of the sinks to fall only supported by the drain pipe below. The Undermounter Stud 8 pack was the perfect retrofit to correct the problem on the fallen sink and to shore up the 2nd sink.Everything you need is in the package. Simply clear out he area under your sink, clean and dry the stone in for places around the sink and install. I chose to mix the epoxy and spread it on the base of each stud and then apply the stud. This is easier than applying the epoxy directly to the stone since you are likely working over your head. Allow the epoxy to dry for a few hours and install the clips, washers and butterfly nuts. Done.Very happy I found this.

There are several other ways to mount a sink, but some require drilling into the slab. I bought this after our "professional" installers mounted our sink with great big wads of goop slapped around the edges. That came off after about a month. We called them to redo it and they quoted $300! I thought about fighting for a free re-install, but remembered that they botched it before and couldn't be trusted to do it right. I already don't trust glue, so I read up on epoxy. There are many kinds and some are very strong and permanent. I figured I'd try this.It worked great! The epoxy is a two part syringe that you squeeze out and mix. You have about 2-3 minutes of working time, but that is plenty. The mixed stuff is very thick and holds the bracket easily, even before it starts to set up. Just make sure you mark exactly where you need the bracket in advance. Apply about 1/8 in thick coating and squish up against the granite and leave it there. After all the brackets are mounted, coat your sink lip with a silicone caulk. By that time, your brackets are part of the granite. Put in the sink and bolt it up. Let the silicone set and you're done.Good luck, but you shouldn't need it. You can really do this.

List stuff as non returnable so when people find out the product is totally useless they atleast know ahead of time. The glue doesnt dry. Ever. Been three days and glue is completely still tacky. Elmers glue would be better. Dont believe the fake 5 star reviews.

The epoxy sets VERY quickly, so be ready to apply it immediately after mixing it. If you need more epoxy, you can buy it at Home Depot for under $10, just make sure you get an epoxy strong enough. Make sure you clean the area that you are going to apply the epoxy to with some type of solvent like rubbing alcohol. I used this to resecure my undermount kitchen sink and it worked flawlessly.

Good idea, but I'm not confident in the epoxy that came with it. Most all of the brackets have come detached from the granite. I still need to reinstall 4 of them and double check the ones that are in there. I feel the silicone is doing more to hold the sink up than these are doing at this point.

I bought this set to install a stainless steel double bowl extra deep sink under a granite top. Following the directions, it was pretty straightforward. Only mix up enough epoxy to set 1 or 2 studs at a time since it goes off pretty quickly, but doesn't fully set for several minutes. I was able to set all 8 studs, mount the sink, install the disposer, and plumb the faucet all in about 30 minutes, and I am not a plumber. My only complaint is that the wing nuts are just stamped out of sheet metal which is ok for a one time use, but should be cheap enough to toss in an extra for the one you inevitably drop between the cabinets or lose down the plumbing cut outs in the bottom of the cabinet....I would advise putting the clip, lock washer, and wingnut on the stud before setting it for the studs in hard to reach areas since the epoxy seems to hold well enough at first This is also a good call if you cover the threads with a bit of tape because the epoxy squeeze out will gum up threads easily. Use the epoxy sparingly, a few mils thick on the back is plenty. I dragged the stud through a small puddle just to pick up what would stick to the stud and that was too much. I ended up with epoxy all over my fingers and the threads. Here is another trick, mark with a Sharpie or heavy pencil line the outline of the sink where you want it, THEN set the studs outside that line. Working around a sink held in place is far too awkward for the effort.