SKU: CLCS12-300Z

1/2" x 3" Conquest Large Diameter Concrete Screws - Zinc, Pkg 25

1/2" x 3" Conquest Large Diameter Concrete Screws - Zinc, Pkg 25!

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Specifications

Diameter: 1/2"
Length: 3"
Material: Carbon Steel
Drill bit size: 1/2"
Drive type: 3/4" Hex
Fixture hole size: 5/8"-11/16"
Head type: Hex Head
Manufacturer name: Conquest Fasteners
Quantity: 25
Description

Conquest Large Diameter Concrete Screws are engineered to handle the toughest anchoring jobs in concrete, block, and brick. These zinc-coated fasteners deliver dependable strength where it matters most, perfect for professionals and serious DIYers alike.

Whether you're mounting structural supports, setting base plates, or anchoring machinery, these large diameter screws give you the holding power needed to get the job done right. The aggressive thread design cuts into the base material for a firm hold without the need for expansion, making them a time-saving alternative to traditional wedge or sleeve anchors.

Each screw features a corrosion-resistant zinc finish that offers added protection for interior or mild exterior environments. A hex washer head allows for secure drive and increased load bearing surface.

Conquest Concrete Screws are available in a variety of diameters and lengths to suit your project’s specific requirements. Choose the option that fits your base material and embedment needs.

Features:

  • Heavy-Duty Holding Power: Designed for anchoring into concrete, block, and brick without the need for additional sleeves or expansion mechanisms.
  • Zinc-Plated Finish: Provides corrosion protection for interior and dry outdoor environments.
  • Aggressive Thread Design: Cuts deep into base material for maximum grip and reduced installation torque.
  • Hex Washer Head: Offers easy installation and secure fit with standard hex drivers.
  • Multiple Sizes Available: Choose the right diameter and length for your job—no cutting corners on embedment depth.

Applications:

  • Attaching structural steel to concrete
  • Mounting ledger boards, handrails, or brackets
  • Anchoring heavy equipment or industrial shelving
  • Concrete formwork or framing supports
  • High-load anchoring in masonry walls

Installation:

  • Use a hammer drill with a carbide-tipped bit to drill the pilot hole. Match the bit size to the screw diameter.
  • Clean out the hole to remove dust or debris.
  • Insert screw using an impact driver or wrench until snug—do not over-torque.
  • Always follow manufacturer-recommended embedment depth for optimal holding strength.

California Residents: WARNING

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× WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects and other reproductive harm. For more information visit: www.P65Warnings.ca.gov.
  • Using large concrete screw to attach pergola bracket to concrete footing

    Conquest Concrete Screws: Reliability You Can Trust

    Whether you’re putting up a pergola or building a backyard deck, Conquest Concrete Screws are the right way to build a sturdy foundation. Faster than wedge anchors and removable, these concrete screws are easy to install and will last.

  • Large diameter concrete screw spinning into concrete and spraying dust

    Power Through Concrete with Confidence

    Time is money - especially on the jobsite. That’s why our concrete screws are designed for fast, hassle-free installation. No anchors. No secondary steps. Just drive and go. With a cutting thread that bites hard and holds fast, they save you time while still delivering the grip you can trust.

  • Large concrete screw being used to install a railing to a concrete floor

    Lock In Strength, Leave Out the Doubt

    When you need hardware that won’t budge, these concrete screws get the job done. Designed to drive smooth and grip hard, they’re easy to install and built to stay put. Whether you’re mounting shelves in a garage or framing out a commercial build, you can count on consistent, secure fastening in concrete, block, or brick.

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