Premium Sink Clips-10 Pack Kit, Undermount Sink Clips, Sink Brackets, Bathroom Sink Clips, Kitchen Sink Clips, Epoxy Sink Clips, Sink Clip, Heavy Duty Sink Clips

Worked out great. Be sure to get the correct epoxy or they will pop off.

A few weeks ago I cracked my bathroom sink and bought an American Standard to replace it. The American Standard came with clips that required drilling into the bottom of the granite (lots more work than I thought it would be, even with a mason bit) and securing a threaded insert into the hole using epoxy. One this was set, the theory was that you could put a screw through the clip and screw it down to the threaded insert. The threaded insert was only a little bigger than the screw itself and when I tried to tighten the screws the insert would spin and the epoxy would fail. I tried 3 different types of epoxy, cleaning with a brush and acetone each time. After 3-5 tries I started to think about how a plate that could be glued to the underside of the countertop would have more surface area to grip than the small threaded insert and would be less likely to spin when tightening the screw. I came on Amazon to look for parts to build what I was thinking and found these - pretty much what I was envisioning. Even better, holes in the plate would allow epoxy through and great stubs that would further keep the plate from spinning. I have literally been trying to get the clips that came with the sink to work for 2 weeks, so for less than $15 I had nothing to lose. I bought a pack and some PC-7 epoxy based on the reviews on here. Installing these was so fast in comparison to the other clips. It took me over an hour to drill 4 small holes in the granite with the other clips, and that was before I even got started on the clips themselves. These clips arrived and it took me 15 minutes to epoxy them to the countertop. I let the epoxy cure for 36 hours (PC-7 says 24 hours but I wanted to be sure). When I checked today the clips were very secure and I could tighten the screws down nice and tight with no hint of the anchors spinning or moving. I wish I had purchased these when I got the sink. The install was easy and fast - and I am confident they will hold better than the clips on my hold sink.

When our sink fell, it was apparent the installers did not mount it correctly. I bought these clips and used epoxy to attach the post to the bottom of the counter. They are made so epoxy can be pushed into holes in round washer. Then placed bracket on and tightened down. I also used a clear construction adhesive on the rim of the sink before pulling up. These are good heavy duty brackets and I would recommend them. After finishing job, I told my wife a sledge hammer could not beat the sink off. Very Pleased.

Easy to apply. Durable.

Perfect for my husband to fix our undermount sink back to our granite countertop. I read other reviews and he was able to do as a few others here described. By using a marine grade cement epoxy after thoroughly cleaning with denatured alcohol. After he put the clip in place he let it cure just a bit before smearing the cement over the holes. I didn’t take another picture.

good quality but difficult to find the proper adhesive/epoxy to permanently secure these to counter. Supplier should research the best adhesive and sell as a kit

I attempted to secure these to the bottom of my sink countertop using epoxy. The epoxy will hold but unfortunately when you’re applying it to an existing countertop the epoxy will drip down the thread and you are unable to secure the sink with the wing nuts. I just used marine grade sealant/adhesive to secure the new sink underneath the existing countertop.

Update 3/27/24: While my handyman was finally adding the additional brackets I mentioned in my initial review a couple of months ago, I found that at least one of the wing nuts on the clips had come completely loose. My handyman wondered why, and I pointed to the garbage disposal unit attached to the sink. My handyman will put blue threadlocker on the nuts as soon as I pick up some new. You might consider doing the same. Also, I finally computed the weight of the water in the two sink basins supported by the ten disks in the test in my initial review, and it was about 133 lb. Since this is more than my weight, it seems that at least I could already stand on the sink without the additional brackets. But of course you cannot be safe enough. My handyman glued those below my quartz counter top, using PC-7 epoxy, to keep up my stainless steel kitchen sink. He told me the intention is that the glue oozes through the holes in the disks. Anyway, after letting them cure for a couple of days, I filled both deep basins completely with water, and not a murmur from the clips, and no problems three months later either. Even so, I have also ordered undermount sink brackets. I just dislike depending completely on glue, and what if some idiot stands on the sink while doing something with the kitchen window? You cannot be safe enough.