ITW/RedHead - LDT-3444 - 3/4" x 4-1/2" Anchor
These screws are packaged 10 per box. They are suitable for use in solid concrete, brick or block base materials. Orders are in stock, and will ship immediately to arrive within 1 to 3 business days.
- Bit size 5/8"
- Minimum embedment 3-1/4"
- Made in U.S.A
- Zinc plated
- Commonly called LDT
- Made from grade 5 steel
- Hex serrated washer head
- Easy to install
- 3/4" is the diameter; 4-1/2" is the length
- All orders under $25.00 ship for free
|2000 PSI Concrete - Pull-Out (lbs.) *
|2000 PSI Concrete - Shear (lbs.) *
||Grade 5 Carbon Steel, Zinc Plated
|Minimum Edge Distance
|Maximum Fixture Thickness
|Minimum Fixture Hole Diameter (In Place)
|Minimum Fixture Hole Diameter (Hole Spotted)
|Length ID Code
|Wrench Size For Nut
||Hex Washer Serrated
* Values shown are average ultimate values and are offered only as a guide and are not guaranteed. A safety factor of 4:1 or 25% is generally accepted as a safe working load
The anchor is made from Grade 5 Carbon Steel, and is Zinc Plated. This anchor is designed for use in Concrete, and should never be used in block or brick base material.
The anchor is designed for use in a Dry environment.
The anchor is a Hex Washer Serrated 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 5/8" hole to be drilled in the base material (Concrete). The hole should be drilled with carbide tipped bit that meets ANSI standards and used in a hammer drill.
A 15/16" nut driver is required for driving the anchor into the base material.
Diameter of Anchor
The diameter of the anchor is 3/4".
The length of the anchor is 4-1/2"
The anchor is packaged with 10 pieces per box .
The minimum anchor embedment into the concrete is 3-1/4". Therefore, the anchor must be installed so that a minimum of 3-1/4" 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 1-1/4". This will ensure that the minimum embedment of 3-1/4" 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 3/4" diameter anchor requires the hole in the fixture to be 3/4".
The size of the wrench required to turn the nut to set the anchor is 15/16" nut driver .
Spacing between Anchors
Each anchor must be spaced a minimum distance of 12" from each other when measured center to center.
It is very important not to install the anchor any closer than 7" from an unsupported edge of the concrete.
MarkingsHolding Values - Ultimate Load Values in 2000 PSI Concrete
The anchor is stamped with the letter G on the threaded end to allow inspection of the anchor after installation. The letter "G" designates an overall length of the anchor as between 4-1/2" up to, but not including 5" in length.
3/4" x 4-1/2"