I needed to put a shelf up in my kitchen, and didn't have space for the larger L-brackets I've used in the past. I found a variety of these "extra stout" hidden shelf brackets, and this particular set of 10 was perfect for my needs - four needed right away for 2 shelves, plus some extras for future projects. All the reviews said that these were very strong, but I was concerned because their mounting screws are all very close together.That concern proved baseless, provided that you use the right wall inserts if needed - they ship you a bunch, the good screw-in type for wallboard (sheetrock), and the insert-type for other wall treatments like brick or concrete. In my case, screwing into some solid wood cabinets, I didn't need any inserts, but I did need short screws (5/8" or 1.5cm) so as not to have screw ends show up inside my cabinets.As it turns out, they ship you 13 of that type of screw, which are actually intended for screwing the shelf down to the bracket. I had to go out and buy a box of those, since my first shelf used two brackets and ten of those shorter screws. But I understand why they didn't include a bunch of those - mine is a slightly unusual use case. Most of these will go on walls, and hopefully one or the other bracket will screw right into a stud, with the other one using the proper wall inserts for strength. If they both end up not in a stud and are just using the inserts, that will work fine for lighter-duty shelving and weight needs. My local hardware store had the same screws - these are flat black brackets with bevels for bevel-head screws. I found the right length of black bevel-head screws to match, and continued the project (see pictures for my first shelf)PROS:1> These are solid steel, very thick, totally unbendable. They would easily hold 100 pounds on a shelf (45kg), with just the pair of them. For heavy applications, use more as needed, like every 16 or 18 inches, and you could hold just about anything.2> As advertised, the wall parts of the brackets are darned near invisible, if installed to be that way. See pics. Very nice.3> Because of the "low profile" of the wall part, these can be used in many places where larger L-type brackets cannot, such as on my upper kitchen cabinet where there is nothing beneath the shelf. Perfect for my needs, but now that I know about these, I'll be using them everywhere. These are great for just about any purpose, and don't leave anything showing, or not much.4> The single hole you use to mount the shelf to the bracket has bevels in both directions, so you can be flexible with the mounting style. If you want to show the wall parts of the brackets (which are not unattractive - nice design), you could point them down on the wall and set the shelf on top of them. The hole to screw the shelf down to the bracket works either way - a nice touch that adds flexibility and allows for your own aesthetic and style. Unexpected benefit.5> LOTS of screws and wall inserts ship with the brackets. Far more than I was expecting. See pics. With just what shipped, most projects could probably be completed. I had to go buy some screws, but my mounting needs are not all that common (the side of a kitchen cabinet end). They cannot anticipate all mounting situations, and they covered the great majority.6> I had planned to do 8" shelves, so I bought 6" brackets. My local hardware store only had 10" shelves, so mine are extended out a ways past the end of the brackets. But these are available in several sizes, and I could have bought 8" brackets, had I known. For my very light-duty needs, these will be entirely adequate, but plan better than I did and buy the right size brackets - especially if you'll be putting any significant weight on the shelves. As it stands, I'm very happy with how these shelves are going in, and the final result.CONS: (not really much to say here, but... a couple of minor things)1> Many shelf brackets come with a paper 'template' for the holes, such that you can tape them to the wall temporarily as you install the brackets. This lets you level the two bracket locations relative to one another, and pre-drill holes without having to hold the brackets up to the wall as you do the drilling. It was a bit awkward putting these up, and took some extra time due to not having any pre-printed templates. I would strongly suggest that the manufacturer include a sheet of these that you could cut apart and tape up for ease of installation. It would cost basically nothing to do this, and add a lot of value and time savings.2> There is only one hole in the bracket to screw the shelf to the bracket. While it's true that gravity will be in your favor and the screw is really to keep the shelf from moving atop the brackets, having one hole at the tip and one back towards the wall end would be a better overall design. Other reviews have said the same. If the manufacturer is reading this and the other reviews (as they should), this would be a minor addition to the manufacturing process that would add a lot of strength and utility to their brackets.3> There is one bag with the short screws provided - just enough for the ten brackets to screw the shelf to the brackets... not really enough for using those screws to mount the brackets to the mounting surface. When you don't have wallboard or studs, more of these shorter screws would be appreciated. My suggestion is to toss in a couple more bags for use cases like mine... but my use case is indeed a bit unusual.One last point. Some reviews have suggested that there needs to be another set of holes in the center of the wall-mount part, for use when screwing into the studs. As I looked at these, and how solid the brackets are, I would not hesitate to just put either the left two or right two screws into the studs, and use sheetrock screw-in inserts for the other two.That would be enough to support the same weight as adding a pair of holes in the center, but would work as they are currently manufactured. I just don't see the point of their argument or concern. These are massive and strong. Stud screws at either end will suffice for all needed strength, in my opinion.

Used these to hang some black walnut live edge shelves. They were easy to use and came with hardware to mount to the wall. Very minimal and can be mounted in two different was on your shelf.

I have a different set of these brackets and from that, I can say they're about the same. In which case, I think if you graze the listings you'll be well served to just shop on price per unit (after any coupons/discounts offered etc...).Everything claimed in the listing checks out except for the weight load (at least in my opinion).They're thick, they're sturdy, they meet the dimensions claimed. In a rare surprise, the anchors and screws that come with this item are actually pretty beefy and usable instead of the typical cheap useless crap that gets thrown in with so many other products to make you feel like you're getting "value."That being said, if you don't mount at least some of the holes of these brackets into studs, I would be a little cautious on how much weight you put on the shelf.On that note, I wish that there were a center set of holes in each bracket. That way you could center the bracket on a stud so that the load is carried directly vertically. As offered, you could mount one side of holes or the other on a stud. That will likely be sturdy enough for most purposes, but it does mean the load is offset from the stud mounted screws and you could end up with some weird sideways leverage.Anyway, I'd say overengineering and lack of that extra hole option are what keeps this item and all like it from being a five star product in my eyes. As of now, this example is a bit overpriced. Maybe prices fluctuate amongst the competitors so at any given time one or the other is the "winner" of your Add To Cart competition... No matter what price you buy these at, you can be confident you're getting what's claimed though. Best luck.~Cheers!

These babies have some weight to them! The four countersink holes secure them to the wall- definitely find a stud for at least one side. They are nice looking and machined perfectly with no burs or sharp edges. The set came with screw packs and small sheetrock inserts- I'm not sure I wouldn't trust it. I upgraded to bigger screws and good screw in sheetrock inserts when I didn't have a stud. I fit pretty heavy shelves on it with 3/4" wood and 12" deep for books. One thing I would change, and I could certainly do this myself, I wish there were more than one shelf securing screw hole on the bottom, especially when overhanging the wood like I did. I'm trusting the single for now, and maybe with the books pushed to the back it won't be an issue. If it fails, I'll add another. But, nice brackets, great to have a ten pack for future use, you can throw a floating shelf anywhere.