I've been using Sharks for YEARS since I discovered them at Home Depot a long time ago. They are way better than your standard anchors and I use them for anything and everything. I install them in drywall, cinder block, brick, concrete and more. Some of these are used to hold racks weighing around 350 pounds (a total of 10 size 5/16 Sharkies used for the mounts). To date, none of them have failed and escaped from the walls they reside within. Includes two sizes of bits needed for mortar/concrete walls and drill bits! This kit is also a lot cheaper than the plastic bags at Home Depot, a lot cheaper! My only complaint is the screw heads, they are a combination slotted and Phillips (flat and Phillips for those still using that lingo). In case you don't know, the spline types are VERY dangerous to use as they slip a lot and can get hurt (I know) and the cross type is better but snaps under load. I've tried looking everywhere and Sharkies (or their company) don't make them with any other type of head as there are many others that are much more slip resistant and grippy when drilling anchors after installation. In general, I still use them for almost ANY type of work that requires setting anchors and so far with no failure.
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