1/2" x 4-1/4" Wedge Anchor Zinc Plated (Box of 25)

The 3/8" by 3" long anchors were easy to install, and they appeared to anchor well. I installed 16 additional anchors to better hold down 8 carport structure support-posts. I drilled the holes in the concrete with a 10mm (I did not have a 3/8" drill) carbide tipped drill bit, using a rotating hammer-drill (cuts concrete "like butter"), and used a squeeze-bulb to clean out the holes. I put a washer and nut on the anchor to avoid inserting the anchor too far, and hammered in the anchor. The outer end of the anchor seemed to be well designed to tolerate the considerable necessary hammering without substantial deforming. Finally, I tightened the nut with a ratchet-wrench, until I could tighten it no more. Note: Make sure that you drill deep enough before inserting the anchor, because you are unlikely to be able to remove the anchor. Yes, on my first anchor hole, I was concerned about drilling too deep. Apparently "too deep" is not a problem with these anchors, at least with a proper tight-fit in the hole. One flange was too close to the edge of the concrete piling, so I drilled one hole substantially off vertical into the piling and that appeared to get the expansion end of the anchor far enough from the side of the piling to tighten the anchor without cracking the concrete. The second hole, I drilled more noticably off vertical, which was probably even better. Overall, it was a success experience with a type of anchor that I had never used before, but would cheerfully use again. Instructions would have helped, but probably most users are not first-time users, like I was.

These are great anchors for wall bottom plates. I haven't cast wall anchors for years. I prefer these anchors over cast in place anchors because I don't have to try to figure out where my studs and plate splices are going to be when I'm pouring concrete. I can place them in the best position after the walls are in place. I generally drill a 1/2" hole through the wood and a 3/8" concrete drill into the concrete. The anchors have a reduced diameter extension on the end to prevent damaging the threads while setting. I slip on the washer and thread the nut just past the start of the thread then drive the anchor down hard with a hammer; then just a few turns to tighten the nut and the job is done. There is a significant savings in buying the box of 50 over the by-the-piece price at the hardware store.

Used these bolts for my shed project. Concrete slab (4,000 psi) with wood framing. Followed instructions on the box (just for drill bit size) and had no issues at all to insert them into the drilled holes and tighten them to give the bottom plates a strong hold to the slab. Framing is solid as a rock. Would buy them again for any other future project.

The wedge colar is fragile. I damaged one due to carelessness. Works great if you have a quality Hammer Drill. Not just an battery screwdriver with hammer drill setting. Used the anchors to install an 80 gal air compressor with three legs. The good hammer drill took 10-15 seconds to drill the 1/2 inch diameter hole to 2 1/4 inch depth. The instructions for seating the anchor were clear and simple. Worked great!

Cheaper than Red Head at Home Depot (Arizona), Used the 1/2" x 5-1/2" to anchor a 20x 26' quonset hut to a concrete slab and footer. They wedged in the 1/2" hole just as they should. I like that the first 1/4 inch or so isn't threaded so it doesn't mess up the threads when you whack the crap out of them to seat them. I seated the nut on the threads just below flush with the top then hit them in. worked great and kept threads intact. Will always look for this brand from now on.

Very pleased with the item. Good quality being much better than expected.

Set 24 of 25 and not one failed. Set in green concrete (at 7 Day break) then came back at 28 days and tightened to spec. Seller shipped fast and kept my project on schedule.

I purchased these anchors for use in a poured concrete pier. The anchors are well made. The box of 25 included the nuts and washers in separate plastic bags. The packing box was even sturdier than needed. The overall zinc finish was bright and shiny. There was no uneven coverage on any anchor. The threading was sharp and defined. A very "jewelry" like finish. I have faith that when I install these fasteners they will hold fast. The "proof is in the pudding" and until I actually drill my holes, in cured concrete, and torque to the specified loading, I can't speak to the hold down power. These are to be used to anchor post metal "stand-offs, and they will be subject more to lateral loads than being pulled out of the concrete. Of course in tornado conditions, the decks "lift" will come into play. If my project experiences high uplift forces causing pull out of the anchors I will update my review after we pick up after the tornado. Such a failure will be more likely from my poor application of the product than any fault of these anchors. (After initial torqueing, the wedged anchors will have the voids in the drilled hole filled with epoxy to prevent wiggle from those lateral forces I expect from expansion and contraction.) Grumpy 46

Will work just fine.

worked well, no issues

Quantity and quality both are good

Perfect items - did the job!

Estos tornillos los usamos para colocar anclajes en rutas de escalada en la roca, buen aguante y fáciles de colocar.