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The anchor is made from Carbon Steel, and is Blue. This anchor is designed for use in Concrete, Block, and Brick.
Environment
The anchor is designed for use in a Dry environment.
Head Style
The anchor is a Hex Washer head and is designed to allow the head to sit on top of the surface of the item being attached.
Hole Diameter/Bit Diameter
The anchor requires a 3/16" hole to be drilled in the base material (Concrete, Block, and Brick). The hole should be drilled with carbide tipped bit that meets ANSI standards and used in a hammer drill.
Driver Required
A 5/16" nut driver is required for driving the anchor into the base material.
Diameter of Anchor
The diameter of the anchor is 1/4".
Length Anchor
The length of the anchor is 2-3/4"
Thread Length
The length of the threads on the anchor is 1-3/4" in length.
Minimum Embedment
The minimum anchor embedment into the concrete is 1". Therefore, the anchor must be installed so that a minimum of 1" of the anchor is embedded into the concrete.
Maximum Fixture Thickness
The maximum fixture thickness or the maximum thickness of the material being fastened for a anchor is 1-1/4" to 1-3/4". This will ensure that the minimum embedment of 1" will be met.
Fixture Hole Diameter
The hole in the fixture or material being fastened must be larger than the designated diameter of the anchor. The 1/4" diameter anchor requires the hole in the fixture to be 5/16".
Spacing between Anchors
Each anchor must be spaced a minimum distance of 4" from each other when measured center to center.
Edge Distance
It is very important not to install the anchor any closer than 3" from an unsupported edge of the concrete.
User
2025-09-01 11:19:27
Great quality. No breaks so far
Robert Alan Koeneke
2025-08-20 15:14:01
I used this to repair a corner pop on my foundation. The original material was lost so I had to form a new one. I used this anchor screw to provide support for the new corner. I drilled into the old concrete, added in an epoxy for anchors, placed the screws tightly, let it dry, setup a form, then troweled in the new concrete. Repair looks good (professional even), and seems very stable (time will tell).To determine the correct size, you need to decide how deep the screw will be set. I wanted mine sticking out by 1.5 inch to act as rebar for the concrete, and drilled about 1.25 inches deep into the existing foundation, so I used 2.75 inch long screws. If anchoring other material, then consider it's width plus the depth you want the screw to be drilled. Be sure to use an anchor epoxy for a permanent fix.A note about drilling the holes for these screws: There are a LOT of drill bits advertised as good for concrete, they aren't. You need a fairly long bit (longer than the length of the screw to be set in the concrete) and it needs to be a REAL CONCRETE DRILL BIT - like the "Bosch BM5000 Fast Spiral Masonry Set". You must use the correct bit width or you can damage the concrete (if too narrow a bit) or the screw won't hold (if too wide a bit). Length is really difficult to get right if you are working in a confined area, so take that into account. If you have a wide open work area then you need to determine how deep you want to set the screw and be sure you have a slightly longer bit - put a piece of tape on it to show how far in to drill and when the tape aligns with the concrete you stop. If you have a really confined area like I did, you need to also determine how much extra bit you need to fit into the area to even reach the drill drill point (I could get the drill about 2 to 3 inches away from the drill hole and no closer). This means you have to add that much to the overall length of the bit for your project to work. Finding long enough masonry drill bits can be a real problem.
GregP
2025-08-14 13:19:21
This is a good masonary screw. It works pretty well if you pre-drill the whole. The only negative I have is they break easily if over torqued. So, be careful when tightening!
Ratiya Araya
2025-08-10 15:14:26
We use about 50 a week and maybe I've broken the head off of 3 of them in the past 4 months. Honestly, that's most likely only because my guy was using too much tork with my impact driver. Going full throttle while the thing is already set. Yea, they might break then. If you know how to use a drill. You shouldn't have an issue. These are good screws. Much better than buying 15 for the same damn price at my local hardware store.
frank
2025-08-04 17:56:41
Thay worth the money great product.
Roman Kurywczak
2025-07-27 14:50:05
I live in SW Florida in a masonry new home. Needed these to hand curtains. Worked flawlessly and description of drill bit helped. I had a hammer drill with bit so much easier to install. Perfect size for my situation as well.
Dan W.
2025-05-16 15:45:17
Nice concrete anchors
Prime Customer
2025-04-12 14:33:12
Product seems ok but was supposed to include a drill bit but that's not the case. Must be poor quality control!
Greg Thorne
2025-03-27 10:57:13
They did what the were designed to do, and well. But honestly, the cost of fasteners now, and these were the least costly of the bunch.
Dennis Vogan
2025-03-03 15:43:48
Works well. The provided masonry bit was great quality.
Jon Nash
2025-02-19 17:43:47
Had no trouble with the screws however the included bit was too short.
Pinari
2025-01-16 13:36:54
En las especificaciones RECOMIENDAN utilizar broca de 3/16" sin embargo a mà no me funcionó asÃ, quedaban bailando con tornillos, tal vez por el tipo de material, lo mismo ocurrió con los TAPCON, ambos incluyen sus brocas pero no logré el efecto deseado por lo que decidà ir por una broca más pequeña.En este caso ocupé una broca SDS de 5/32" y el efecto logró ser el esperado, algunos tornillos siguen girando al llegar a tope (por extracción saldrÃa con mucha facilidad) con esta combinación de broca y tornillo quedó muy sólido.
Saffa
2024-12-31 14:35:09
I planned on using these screws to drill into concrete. I didn't use the included bit but my own 5/32 SDS bit to predrill the holes. I then used a cordless drill to screw in the fastener. On the first screw the head broke off. I thought maybe it was a bad one so I tried another screw and the same thing happened. I switched to a lower power drill and went at a slow speed and the screws kept breaking. After drilling eight holes and having eight screws break I gave up. I had a few Tapcon screws left so I used them with no problem. Not only are these screws poor quality they are dangerous if you plan on using them for anything that you don't want falling down when the screw snaps.
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