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3/8" x 2-1/2" Large Diameter Tapcon 410 Stainless Steel SLDT-3824, 50/Box

$173.87 per Box of 50
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SKU: LDTS38212 MFG#: SLDT-3824
  MFG: ITW/RedHead®

ITW/RedHead - SLDT-3824 - 3/8" x 2-1/2" Anchor

The screws are packaged 50 pieces per box. Designed for use in most masonry materials, such as solid concrete, brick or block. Orders will ship same day received and should arrive within 1 to 3 business days.

  • Bit size 5/16"
  • Minimum embedment 1-1/2"
  • Made in U.S.A
  • Made from 410 stainless steel
  • No assembly required
  • One piece design
  • Head has attached washer and serrated
  • Fast and easy to install
  • Can be easily removed
  • 3/8" inch is the diameter, 2-1/2" inch is the length
  • Over $25.00 qualifies for free freight
Products specifications
Bit Size 5/16"
Minimum Embedment 1-1/2"
Thread Type Hi-Lo
2000 PSI Concrete - Pull-Out (lbs.) * 1336
2000 PSI Concrete - Shear (lbs.) * 2108
Type Male
Diameter 3/8"
Length 2-1/2"
Material 410 Stainless Steel
Environment Moist
Box Qty 50
Minimum Spacing 6"
Minimum Edge Distance 3"
Maximum Fixture Thickness 1"
Minimum Fixture Hole Diameter (In Place) 7/16"
Minimum Fixture Hole Diameter (Hole Spotted) 7/16"
Length ID Code C
Wrench Size For Nut 9/16"
Head Type Hex Washer Serrated
Length Measurement Underneath head
Driver Size 9/16"
Brand Name ITW/RedHead

The anchor is made from 410 Stainless Steel. This anchor is designed for use in Concrete, Block, and Brick.

The anchor is designed for use in a Moist environment.

Head Style
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 5/16" 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 9/16" is required for driving the anchor into the base material.

Diameter of Anchor
The diameter of the anchor is 3/8".

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

The anchor is packaged with 50 pieces per box .

Minimum Embedment
The minimum anchor embedment into the concrete is 1-1/2". Therefore, the anchor must be installed so that a minimum of 1-1/2" 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". This will ensure that the minimum embedment of 1-1/2" 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 3/8" diameter anchor requires the hole in the fixture to be 7/16".

Wrench Size
The size of the wrench required to turn the nut to set the anchor is 9/16".

Spacing between Anchors
Each anchor must be spaced a minimum distance of 6" 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.

The anchor is stamped with the letter C on the threaded end to allow inspection of the anchor after installation. The letter "C" designates an overall length of the anchor as between 2-1/2" up to, but not including 3" in length.

Holding Values - Ultimate Load Values in 2000 PSI Concrete

Anchor Size

Minimum Embedment

Pull-Out (lbs.)

Shear (lbs.)

3/8" x 2-1/2"




3/8" x 2-1/2" 410 stainless steel large diameter tapcon - concrete - ladder


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. *

These bits work with the selected anchor
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