Large Diameter Concrete Screws

8 products

  • 1/4" x 1-7/8" Conquest Large Diameter Concrete Screws - Zinc, Pkg 100
    SKU: CLCS14-178Z

    Conquest Large Diameter Concrete Screws - Zinc

    Diameters
    1/4" 3/8" 1/2" 5/8"
    Lengths
    1-7/8" 2-3/4" 3" 1-3/4" 2-1/2" 4" 5" 6"
    • Installs With An Impact Wrench
    • Fully Removable Anchor
    starting at
    $31.10
    Ships today when you order in the next 5 hours 18 minutes.
    starting at
    $31.10
    Ships today when you order in the next 5 hours 18 minutes.
  • 3/8" x 4" Conquest Large Diameter Concrete Screws - Galvanized, Pkg 50
    SKU: CLCS38-400G

    Conquest Large Diameter Concrete Screws - Galvanized

    Diameters
    3/8" 1/2" 5/8"
    Lengths
    4" 6" 5"
    • Galvanized For Added Corrosion Resistance
    • Fully Removable Anchor
    starting at
    $57.60
    Ships today when you order in the next 5 hours 18 minutes.
    starting at
    $57.60
    Ships today when you order in the next 5 hours 18 minutes.
  • 1/4" x 1-7/8" Strong-Tie THDB25178H Titen HD Screw Anchor, Zinc packaging
    SKU: THDB25178H

    Strong-Tie Titen HD Screw Anchor, Zinc

    Diameters
    1/4" 3/8" 1/2" 5/8" 3/4"
    Lengths
    1-7/8" 3" 4" 5" 6" 12" 6-1/2" 8" 10" 8-1/2"
    • Self-undercutting, non-expansion screw anchors
    • Designed to be installed in dry, interior, non-corrosive environments
    starting at
    $34.93
    Ships today when you order in the next 5 hours 18 minutes.
    starting at
    $34.93
    Ships today when you order in the next 5 hours 18 minutes.
  • 3/8" X 3" Strong-Tie THD37300H4SS Titen HD Screw Anchor, 304 Stainless Steel
    SKU: THD37300H4SS

    Strong-Tie Titen HD Screw Anchor, 304 Stainless Steel - Box Quanties

    • Self-undercutting, non-expansion screw anchors
    • Ideal for general exterior environments
    $237.26
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    $237.26
    Free Shhipping!
    Free Shhipping!
    Ships FREE today when you order in the next 5 hours 18 minutes.
    $237.26
    You Save 0%
    $237.26
    Free Shhipping!
    Free Shhipping!
    Ships FREE today when you order in the next 5 hours 18 minutes.
  • 38 inch x 134 inch LDT Tapcon Screw Zinc Pkg 50
    SKU: LDT-3816

    LDT Tapcon Screw, Zinc

    Diameters
    3/8" 1/2" 5/8" 3/4"
    Lengths
    1-3/4" 2-1/2" 3" 4" 5" 6" 4-1/2" 5-1/2" 6-1/4"
    • Ideal for installing racking, shelving and conveyor systems
    • Suitable for non-corrosive indoor environments
    starting at
    $44.12
    Ships today when you order in the next 5 hours 18 minutes.
    starting at
    $44.12
    Ships today when you order in the next 5 hours 18 minutes.
  • 38 inch x 212 inch LDT Tapcon 410 Stainless Steel Screw Pkg 50
    SKU: SLDT-3824

    LDT Tapcon 410 Stainless Steel Screw

    Diameters
    3/8" 1/2"
    Lengths
    2-1/2" 3" 4" 5"
    • Ideal for installing racking, shelving and conveyor systems
    • Type 410 Stainless Steel provides extra corrosion resistance
    starting at
    $315.69
    Free Shhipping!
    Free Shhipping!
    Ships FREE today when you order in the next 5 hours 18 minutes.
    starting at
    $315.69
    Free Shhipping!
    Free Shhipping!
    Ships FREE today when you order in the next 5 hours 18 minutes.
  • 1/4" X 2" Strong-Tie THDC25200H6SS Titen HD Screw Anchor, 316 Stainless Steel
    SKU: THDC25200H6SS

    Strong-Tie Titen HD Screw Anchor, 316 Stainless Steel - Box Quantities

    Diameters
    1/4" 3/8"
    Lengths
    2" 2-3/8" 3"
    • Provides long lasting resistance in corrosive environments
    • Serrated cutting teeth for easy installation
    starting at
    $187.96
    Ships today when you order in the next 5 hours 18 minutes.
    starting at
    $187.96
    Ships today when you order in the next 5 hours 18 minutes.
  • 3/8" x 3" Strong-Tie THD37300HMG Titen HD Screw Anchor, Galvanized
    SKU: THD37300HMG

    Strong-Tie Titen HD Screw Anchor, Galvanized, Box Qty

    Diameters
    3/8" 1/2" 5/8"
    Lengths
    3" 4" 5" 6" 8"
    • Designed to be installed in cracked and uncracked concrete applications
    • Serrated cutting teeth for easy installation
    starting at
    $76.80
    Ships today when you order in the next 5 hours 18 minutes.
    starting at
    $76.80
    Ships today when you order in the next 5 hours 18 minutes.

Large Diameter Concrete Screws for High-Load Structural Anchoring

Large diameter concrete screws are engineered for heavy-duty fastening into concrete, brick, and grout-filled block. Designed for structural and code-driven applications, these anchors feature deeper threads and increased surface contact to deliver higher shear and pullout strength. When maximum holding power is required without the installation time of traditional expansion anchors, large diameter masonry screws provide a fast, reliable solution.

Engineered for Structural Performance

These heavy-duty concrete screws are ideal for applications where smaller fasteners are not sufficient. Their precision thread geometry cuts directly into the base material, creating strong mechanical engagement without expansion sleeves or adhesives. Many options are ICC-recognized and suitable for use in cracked and uncracked concrete, depending on manufacturer specifications.

Available in multiple head styles, diameters, and corrosion-resistant finishes, large diameter concrete screws can be matched to demanding commercial, industrial, and structural builds.

Common Applications

  • Securing ledger boards and structural brackets
  • Mounting heavy machinery and racking systems
  • Anchoring guardrails, posts, and safety equipment
  • Structural framing connections requiring code compliance

Key Considerations

  • Load Requirements: Confirm shear and tension values meet engineered specifications and local building codes.
  • Base Material: Best suited for solid concrete or grout-filled block. Verify manufacturer approval for cracked concrete or seismic zones.
  • Corrosion Protection: Select zinc, galvanized, or stainless steel finishes based on environmental exposure.
  • Embedment Depth: Proper drilling depth and hole cleaning are critical for achieving rated performance values.

Available Material Finishes

  • Zinc-Plated: Suitable for interior or dry environments with basic corrosion protection.
  • Galvanized: Enhanced protection for general exterior exposure and treated lumber contact.
  • Stainless Steel: Superior corrosion resistance for coastal, chemical, or high-moisture environments.

Installation Best Practices

  1. Drill the Correct Pilot Hole: Use a hammer drill with the manufacturer-recommended bit size.
  2. Clean the Hole Thoroughly: Remove debris to maximize thread engagement and load performance.
  3. Drive to Proper Embedment: Seat the screw snugly without over-torquing, especially near edges or hollow sections.

Need Help Selecting Large Diameter Concrete Screws?

Structural fastening demands the right anchor for the job. Our product experts can help you evaluate load requirements, base material conditions, and environmental exposure to select the correct solution. Contact us for professional guidance and contractor pricing support.

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