WINKER Countertop Support Bracket 2 Pack Heavy Duty 3/8" Thick Hidden L Shelf Bracket 6" x 6" x 2.5" Metal Corbels for Quartz/Granite/Wood/Concrete/Laminate Countertops, Black

excellent product for island support. Purchased beginning of 2025 for my kitchen remodel. Year later still holding strong.

WOW I love these, they are heavy duty, Much stronger than I need but I know that they will not fail. They look good too.

Used brackets for a repair on my running boards on my Ford Explorer. Thick and heavy duty.

These work perfect for our island when we were installing new countertops! They are a solid 90° angle and DONT flex. They feel heavy, and a good quality! Measurements were spot on. Our contractor installed them with no problem. Excellent value for the price!

Used them to support a granite shelf. Work great. Plenty strong.

Addicted and good quality

Heavy duty brackets I used them to support a granite bar top that was attached to the wall I would definitely purchase again

Great shelf supports. Careful installation is important. I used them to support a 12 ft by 24" shelve. Did the job, well.

Used these to support a large island.. heavy duty and true 90 degrees..would recommend not using the screws that come with them though, buy proper heavier ones. Great product though

Totally sturdy, very heavy duty

Did the job. Very heavy

Très bonne qualité. Nous l’avons utilisé pour notre comptoir qu’on vient d’installer.

Ordered these to put together a DIY concession stand countertop in the corner of a dining room. Good news is that these brackets are solid and seem to be well constructed. My biggest concern was whether these would be a perfect 90 degrees and I'm happy to say that both were excellent and feel like they can hold a considerable amount of weight. Note, though, that if your walls are off even slightly you'll still need to use a shim or two to make everything level. My only real gripe was that if installing on studs you'll need double studs to use all four holes. See the pic attached. They should have this size with centered holes also. I opted to use two holes only per bracket to ensure the screws were well secured in the center of one stud. I also opted to buy different screws since the ones included are not long enough imho. I bought a small pack of 12x3, which work well. BTW, using two holes still feels solid and should work well since I'll never get anywhere near the rated weight limits. Overall, these brackets are very good and were the perfect solution for what I needed.