What is the best type of concrete anchor?
6 min read
Asked by: Stephanie Sullivan
The Best Concrete Anchors of 2022
- DRYLOK 00917 Cement Hydraulic WTRPRF.
- Best Overall. Klein Tools 53729 Conical Anchor Kit.
- Best Bang for the Buck. T.K.Excellent Phillips Pan Head Self Tapping Screws.
- Best Concrete Screw. …
- Best Wedge Anchor. …
- Best Plastic. …
- Best Hammer-Set. …
- Best Liquid.
What type of concrete anchor should I use?
The best holding values are achieved when the concrete is hard and the embedment into the concrete is deep. The larger the diameter- the higher holding values the anchor will have. For example, a 3/4″ diameter anchor has a minimum embedment of 3-1/4″ and a 1/4″ anchor has a minimum embedment of 1″.
What are the different types of concrete anchors?
Types of Concrete Anchors
- Wedge Concrete Anchors.
- Concrete Sleeve Anchors.
- Split Drive Concrete Anchors.
- Stud Concrete Anchors.
- Lag Shield Concrete Anchors.
- Self Drilling Concrete Anchors.
- Drop-In Concrete Anchor.
- Machine Screw Anchors.
Are wedge anchors better than Tapcons?
Tapcon and wedge anchors are pre-installed mechanical anchors that attach structural objects to concrete structures. However, the wedge anchor suits heavier-duty applications, vs the Tapcon anchor that typically serve lighter deployments. Another difference between them is in their fastening method.
What is the best way to anchor into concrete?
Drill a pilot hole at the proper location with a hammer drill and masonry bit to the depth your screw will penetrate. Tap the plastic anchor into the hole. It should fit snugly but drive in easily with a hammer. If the hole gets a bit large, use a bigger screw to push the plastic against the walls of the hole.
What is the strongest masonry anchor?
Wedge anchors
Wedge anchors are typically the strongest anchors, but not every application requires a heavy-duty anchor. Some will do just fine with a plastic wall anchor or a nail-in version.
Which is better wedge anchor or sleeve anchor?
Sleeve anchors are fairly simple to use and are primarily used in brick or block. They can be used in concrete but are not considered as strong as a wedge anchor. So, for light to medium holding applications, a sleeve anchor is a good choice.
How much weight can a 1/2 concrete anchor hold?
Technical Specifications for Drop-In Anchors
| Size | Minimum Embedment | Pull-Out (lbs.) |
|---|---|---|
| 1/4” | 1” | 939 |
| 3/8” | 1-9/16” | 1560 |
| 1/2” | 2” | 3105 |
| 5/8” | 2-1/2” | 3323 |
What is the difference between wedge anchor and expansion anchor?
The wedge anchor can only be used in solid concrete.
Wedge anchors are designed not to be used in other masonry materials such as brick or hollow block. The expansion clip on the wedge anchor is placed on the anchor body in a manner and location that makes the expansion tolerance location critical.
What are the four types of concrete fasteners?
Concrete Fasteners
- Wedge Anchors. Designed for light to heavy-duty anchoring into solid concrete. …
- Sleeve Anchors. For light to medium-duty fastening/anchoring to concrete, brick or block base material. …
- Tapcon® Screws. …
- CONFAST® Screws. …
- Drop-In Anchors. …
- Machine Screw Anchors. …
- Leadwood Screw Anchors. …
- Single Expansion Anchors.
How deep should anchor bolts be in concrete?
The hole needs to be drilled 1/4″ deeper than the anchor will penetrate. The hole can’t be drilled while the fixture is in place due to the fact that the hole is larger than the diameter of the bolt being inserted into it.
How deep should anchor bolts be in concrete slab?
A 5/8” concrete wedge anchor requires a 5/8” hole to be drilled into the concrete. The hole in the concrete needs to be drilled a minimum of 1/2” deeper than the concrete wedge anchor will penetrate into the concrete.
How do you use Tapcon concrete anchors?
Place the concrete screws into the fixture. And into the hole. Using your drill or a wrench to turn the screw. Will allow the screw to tap threads into the base material.
Why do my Tapcons keep breaking?
The base material may be too abrasive or too hard for the threads of the tapcon to tap. The base material may be too soft or sandy and not allow for the tapcon threads to hold properly.
Do I need a hammer drill for Tapcon screws?
The hole must be drilled using a hammer drill with a carbide tipped bit meeting ANSI standards. A bit that meets ANSI standards will ensure that the hole diameter will meet the requirements of the Tapcon®.
How much weight will Tapcon screws hold?
Technical Specifications for Tapcon Concrete Screws
| Size | Minimum Embedment | Shear (lbs.) |
|---|---|---|
| 3/16” | 1” | 400 |
| 1/4” | 1” | 620 |
Why are Tapcon screws blue?
Tapcon+ unmatched performance in concrete, block and brick applications make them an excellent alternative to expansion anchors, plugs, lag shields and have a blue corrosion resistant coating that enables them to withstand the harshest conditions.
Are Tapcon screws any good?
They are also a very unique (and of course proprietary) product that allows for extremely fast and reliable anchoring of materials to masonry products. If you drill the hole correctly – deep enough and with the correct diameter bit – these fasteners will simply work every time.
How much weight can a quarter inch Tapcon hold?
1,360 lbs. *A safety factor of 4:1 or 25% of ultimate pullout/shear value is generally accepted as a safe working load. 340 lbs.
How do you know what size Tapcons to buy?
The length of Tap Con to use in any specific application is determined by adding the thickness of the material being fastened to the minimum embedment of 1”. This will give the minimum length of Tap Con screw that can be used.
How much weight can a cinder block anchor hold?
Masonry and concrete anchor types are considered light-duty, medium-duty or heavy-duty, based on how much weight they can support. Light-duty anchors are good for wall hangings that weigh up to 50 pounds. Medium-duty anchors are good for wall hangings that weigh up to 200 pounds.
How much weight can a wedge anchor hold?
Technical Specifications for Wedge Anchors
| Size | Minimum Embedment | Pull-Out (lbs.) |
|---|---|---|
| 5/8” | 2-3/4” | 3749 |
| 3/4” | 3-1/4” | 4978 |
| 7/8” | 3-7/8” | 6294 |
| 1” | 4-1/2” | 7329 |
How long should my concrete anchor be?
As a rule of thumb, the space for the nut and washer is equal to the diameter of the wedge anchor being used. For example, if a 2×4 is being fastened to concrete with a 1/2” wedge anchor then the minimum length of wedge anchor would be 1-1/2”(2×4) + 2-1/4”(minimum embedment) + 1/2”(space for nut and washer) = 4-1/4”.
What grade are wedge anchors?
Wedge anchors are also produced in two grades of stainless steel. 303 stainless steel has excellent corrosive characteristics for exterior uses and is resistant to many organic and inorganic chemicals, but should not be used in a saltwater environment.
How strong is a 1/2 wedge anchor?
Tech Specs
| Diameter | 1/2 in |
|---|---|
| Overall Length | 5-1/2 in |
| Series | Wedge-All® |
| Shear Strength | 850 lb |
| Tensile Strength | 871 lb |
How far apart should wedge anchors be?
A rule-of-thumb in the concrete-fastener industry is that the minimum spacing should be 10 diameters from each anchor, and measured center to center. The spacing from an unsupported edge should be at least five-anchor diameters. Wedge anchors provide the widest range of concrete fasteners, from 1/4 to 1-1/4-in.
How long do anchor bolts need to be?
Bolt Shape and Size
An anchor bolt diameter ranges from 3/8 inch to 1 inch or more and the length runs from roughly 6 inches to greater than 3 feet. While sizing requirements vary according to local code, 1/2 inch diameter, embedded at least 7 inches, is usually the minimum.
