DeWALT Anchors and Fasteners Screw-Bolt+ Hex Washer Head Screw Anchor - 3/4 in. x 4 in. is a heavy-duty, one-piece carbon steel concrete anchor engineered for reliable fastening in normal-weight concrete and grouted or solid masonry applications. The zinc-plated finish protects the carbon steel body against surface corrosion, making this screw anchor well suited for demanding structural fastening tasks. Featuring a patented thread design and a ratcheting hex washer head, this screw anchor delivers low installation torque, fully removable engagement, and the kind of productivity-focused performance that concrete and masonry contractors depend on.

Key Features

• Designed for standard ANSI tolerance drill bits - eliminates the need for specialty tooling, so installation can begin immediately with equipment already on the job site.
• Patented thread design offers toughened threads for tapping high strength concrete - the threads cut directly into the base material during installation, creating a keyed mechanical engagement that resists pullout without relying on expansion pressure.
• Low installation torque in concrete and masonry - reduces operator fatigue during repetitive fastening and speeds up overall project completion.
• Universal product for concrete and grouted/solid masonry - one anchor works across multiple base materials, simplifying procurement and inventory management on mixed-substrate projects.
• Ratchet teeth on underside of hex washer head lock against the fixture - prevents the head from backing off under vibration or dynamic loading once fully driven, maintaining a secure connection over time.
• Can be installed closer to a free edge than traditional expansion anchors - reduced edge and spacing distances allow placement in tight or constrained locations where conventional anchors cannot be used.
• Fully removable one-piece design - allows the anchor to be extracted and the connection to be adjusted or disassembled without damaging the base material, supporting temporary or repositionable fixtures.
• Bright zinc-plated carbon steel construction - provides a protective surface finish that helps resist surface oxidation during storage and typical indoor structural applications.

Why This Product

• Simplified installation in concrete and masonry - the Screw-Bolt+ uses standard ANSI drill bits and threads directly into the hole, eliminating the setting tools and hammering steps required by traditional expansion anchors, saving time on every installation.
• Works where other anchors cannot - the patented thread engagement allows reduced edge and spacing distances, giving installers more flexibility in tight concrete locations that would disqualify conventional wedge or sleeve anchors.
• Versatile across multiple base materials - a single anchor type covers normal-weight concrete and grouted or solid masonry, reducing the number of different fastener products needed on multi-substrate job sites.
• Removable and reusable connection - because the Screw-Bolt+ threads into the base material without permanently expanding, it can be removed and reinstalled, making it the right choice for fixtures that may need to be relocated or adjusted after initial installation.

Specifications

• Brand: DeWALT
• Product Type: Screw-Bolt+ Screw Anchor
• Diameter: 3/4 in.
• Fastener Length: 4 in.
• Head Style: Hex Washer Head
• Finish: Zinc Plated
• Primary Material: Carbon Steel
• Connection Design: Concrete and Masonry
• Weight: 0.607 lb.
• Country of Origin: Taiwan

Available Pack Options

• PFM1411720: 20 Pk
• PFM1411720 -3: 60 Pk

Approved Applications

• Normal-weight concrete fastening and structural attachment
• Grouted masonry and solid masonry block installations
• Applications requiring reduced edge and spacing distances relative to traditional expansion anchors
• Temporary or repositionable fixture attachment where anchor removability is required

Frequently Asked Questions

What base materials is the Screw-Bolt+ approved for?

The Screw-Bolt+ is suitable for use in normal-weight concrete and grouted or solid masonry. It is a universal product designed to work across both concrete and masonry base materials with a single anchor type.

Does the Screw-Bolt+ require a special drill bit for installation?

No specialty drill bit is required. The Screw-Bolt+ is specifically designed for use with standard ANSI tolerance drill bits, which are widely available and commonly found on job sites, so no additional tooling needs to be purchased for installation.

Can the Screw-Bolt+ be removed after installation?

Yes. The Screw-Bolt+ is fully removable. Because its patented threads tap into the base material during installation rather than permanently expanding, the anchor can be backed out and removed without damaging the surrounding concrete or masonry, making it suitable for temporary or adjustable fixture applications.

How does the hex washer head help maintain a secure connection?

The underside of the hex washer head features ratchet teeth that lock against the surface of the fixture during installation. This mechanical locking action prevents the head from loosening or backing off under vibration or movement after the anchor has been fully driven, helping maintain consistent clamping force over the life of the connection.