Concrete Anchors & Fasteners is Our Specialty   Questions? Contact Mike   

You have no items in your shopping cart.
Free Shipping
For orders $25
or more within
the USA

1/2" x 5-1/2" Galvanized Wedge Anchor, 25/Box

$47.00 per Box of 25
    Payment types
   Availability: In Stock
  Questions? Email Mike

SKU: WAG12512

CONFAST® - 1/2" x 5-1/2" Galvanized Wedge Anchor

The CONFAST® 1/2" x 5-1/2" Galvanized Wedge Anchor (25 pcs per box) are designed for fastening to concrete. All orders ship immediately from the Cleveland, Ohio warehouse for delivery in 1 to 3 days.

  • Bit size 1/2"
  • Minimum embedment 2-1/4"
  • Thread Length 4"
  • 304 stainless steel clip
  • Galvanized for use in moist environments
  • For use in non-vibratory loading applications
  • Packaged with galvanized nuts and washers
  • 1/2" thick x 5-1/2" overall length
  • Spacing between anchors is a minimum of 10 anchor diameters
  • Free shipping on orders over $25.00
Products specifications
Bit Size 1/2"
Minimum Embedment 2-1/4"
Thread Length 4"
Thread Type 1/2" - 13
2000 PSI Concrete - Pull-Out (lbs.) * 2999
2000 PSI Concrete - Shear (lbs.) * 5564
Type Male
Primary Concrete only
Diameter 1/2"
Length 5-1/2"
Material Galvanized
Environment Damp
Box Qty 25
Minimum Spacing 5"
Minimum Edge Distance 2-1/2"
Maximum Fixture Thickness 2-3/4"
Minimum Fixture Hole Diameter (In Place) 5/8"
Minimum Fixture Hole Diameter (Hole Spotted) 1/2"
Length ID Code I
Maximum Torque 50 - 60 ft./lbs.
Wrench Size For Nut 3/4"
Length Measurement End to End
Brand Name CONFAST

The anchor is made from Carbon Steel, and is Galvanized. This anchor is designed for use in Concrete only, and should never be used in block or brick base material.

The anchor is designed for use in a Damp environment.

Hole Diameter/Bit Diameter
The anchor requires a 1/2" hole to be drilled in the base material (Concrete only). The hole should be drilled with carbide tipped bit that meets ANSI standards and used in a hammer drill.

Diameter of Anchor
The diameter of the anchor is 1/2".

Length Anchor
The length of the anchor is 5-1/2"

Thread Type
The threads on the anchor are national coarse threads that measures 1/2" with 13 threads per inch, commonly referred to as 1/2"-13 .

Thread Length
The length of the threads on the anchor is 4" in length.

The anchor is packaged with 25 pieces per box and is packaged with the correct number and diameter of nuts and washers.

Minimum Embedment
The minimum anchor embedment into the concrete is 2-1/4". Therefore, the anchor must be installed so that a minimum of 2-1/4" of the anchor is embedded into the concrete.

Depth of Hole
The depth of the hole that is required for the anchor should be a minimum of 1/2" deeper than the anchor will penetrate the concrete. This will allow space for dust created during the installation process to fall, which will prevent the anchor from bottoming out in the hole before full penetration into the concrete.

Maximum Fixture Thickness
The maximum fixture thickness or the maximum thickness of the material being fastened for a anchor is 2-3/4". This will ensure that the minimum embedment of 2-1/4" 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 1/2" diameter anchor requires the hole in the fixture to be 5/8".

Wrench Size
The size of the wrench required to turn the nut to set the anchor is 3/4".

Torque Value
To be set properly in the concrete, the anchor must be torqued to between 50 - 60 ft./lbs.

Spacing between Anchors
Each anchor must be spaced a minimum distance of 5" from each other when measured center to center.

Edge Distance
It is very important not to install the anchor any closer than 2-1/2" from an unsupported edge of the concrete.

Bolt Length
When a bolt is used in conjunction with the anchor, the length of the bolt needed is determined by considering these factors:

  • Flush With Concrete - when the anchor is set flush with the surface of the concrete, add the thickness of the material being fastened to the thread length of 4", and then add the space for any washers used.
  • Below Surface of Concrete - add the depth below the surface of the concrete to the thickness of the material being fastened, then add the space for the washer, and, finally, add 4" for the thread engagement.

The anchor is stamped with the letter I on the threaded end to allow inspection of the anchor after installation. The letter "I" designates an overall length of the anchor as between 5-1/2" up to, but not including 6" in length.

Holding Values - Ultimate Load Values in 2000 PSI Concrete

Anchor Size

Minimum Embedment

Pull-Out (lbs.)

Shear (lbs.)

1/2" x 5-1/2"




Installing a 1/2" x 5-1/2" Galvanized Wedge Anchor
  1. Drill a 1/2" hole into the concrete using a carbide-tipped bit that meets ANSI Standards B212.15.
  2. Drill the hole a 1/2" deeper than the anchor will penetrate the concrete, making sure the minimum embedment requirements of 2-1/4" is met.
  3. The hole can be drilled while the fixture is in place. The minimum hole in the fixture for the 1/2" x 5-1/2" Galvanized Wedge Anchor is 5/8".
  4. Clean the hole with a wire brush, vacuum, compressed air, or a blow-out bulb.
  5. Put the nut and washer on the 1/2" x 5-1/2" Galvanized Wedge Anchor, making sure the nut is on the last threads; this will protect the threads from damage when the wedge anchor is hammered into the hole and into the concrete.
  6. Insert the anchor through the hole in the fixture and into the hole in the base material.
  7. This should be a very tight fit. Then use a hammer to complete the installation until the nut and washer are tight against the fixture. It is important that the threads go below the surface of either the base material or the fixture.
  8. Turn the nut clockwise on the anchor until finger tight.
  9. Using a 3/4" wrench, turn the nut 3 to 4 times until snug or until the proper torque value of 50 - 60 ft./lbs. is reached.
  10. Always use proper personal protective equipment per manufacturer's and OSHA instructions.

1/2" x 5-1/2"  galvanized wedge anchor - concrete - stairway overhang


Product/Company Reviews

* The figures above indicate average ultimate tension and shear failure values. A safety factor of 4:1 or 25% of ultimate value is generally accepted as a safe working load. Reference should always be made to applicable codes.

* The bits are recommended by diameter and may not necessarily be the length needed for your application. Please make sure the usable length will work for your application. *