ITW BRANDS24292 15 Pack, 5/16" x 2", Steel, Hex Washer Head, Large Diameter Tapcon Concrete Anchor , blue

Used to anchor my gazebo to a concrete pad. Everyone of them stripped or the head broke off. Was not able to use one of them successfully following the instructions given for bit/hole size etc.

Much better than the old wedge anchors

The concrete screws were as advertised and arrived quickly. Good transaction and experience with this supplier.Thanks

Good, unfortunately not made in USA. no where stated except on package when arrived. Please let your consumers know before buying.

work great

Exactly as advertised! A+

The product is a bit pricey, but it's worth it for the time saving. Screw type anchors use the smallest possible hole for a given strength. I used them to mount a monitor bracket on a masonry block wall. I found a 3/8" socket useful to drive them in the holes.These have a tearout strength of near 3,000 pounds. 1/4 tearout is considered safe working load. So, that leaves only 750 lbs. That's not a lot, but it's better by far than any other anchor its size, 5/16". It requires a 1/4" hole to thread properly. If you hit a big piece of aggegate (stone), I back it out just a bit, so the the threads will cut in twice, and the anchor head won't twist of by torsion.A hammer drill or rotary hammer is a must. If that's a problem, buy one. It will take an hour to drill the hole deep enough with a simple rotary drill. Masonry drill bit is also a must. HSS bots will dull instantaneously, beyond repair. I like stuff solid, so I go a bit overboard on anchors.The actual diameter of the shaft, without the threads, is about 1/4", in case the reader is doing shear calculations. It's just a really good anchor. I'm perfectly satisfied!And these are the best bits I've ever seen: https://www.amazon.com/Masonry-CONCRETE-CINDERBLOCK-Industrial-Strength/dp/B07DQRDPT7/ref=mp_s_a_1_2_sspa?crid=6WVNZ582ROU6&dchild=1&keywords=masonry+drill+bit+set&qid=1635718171&sprefix=masonry+%2Caps%2C695&sr=8-2-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyS1MxMk9BTVo4MlRQJmVuY3J5cHRlZElkPUEwNTc5NDEyNEJPSk9aWEJLS1RFJmVuY3J5cHRlZEFkSWQ9QTA0NTgwNzUzVjZIREJZUThBVk5OJndpZGdldE5hbWU9c3BfcGhvbmVfc2VhcmNoX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

Length is 2 1/4" not 2"... drill deeper!