DeWALT Anchors and Fasteners UltraCon SS4 Hex Washer Head Gimlet Point Screw Anchor (1/4 in. x 1-3/4 in.) is a 410 stainless steel concrete screw anchor engineered for light to medium duty fastening in concrete and masonry block base materials. Designed as a high-performance alternative to standard Tapcon-style masonry screws, this anchor installs quickly without the need for a separate anchor insert, delivering a clean, finished look once set. The hex washer head with gimlet point design drives efficiently and seats flush, making it a go-to choice for contractors and installers working on screen enclosures, storm shutters, and light duty industrial mounts where both speed and corrosion resistance matter.

Key Features

• 410 Stainless Steel Construction - provides strong, lasting performance in concrete and masonry applications where moisture and mild corrosive conditions are present, offering significantly better corrosion resistance than standard carbon steel fasteners
• Stalgard Coating with 1000-Hour Salt Spray Protection - tested per ASTM B117, this advanced surface treatment extends the service life of the anchor in demanding or coastal environments where standard finishes fall short
• Special Heat Treatment - preserves and enhances the inherent corrosion resistance of the 410 stainless steel material, ensuring the anchor maintains its protective properties throughout the life of the installation
• Hex Washer Head with Gimlet Point - the gimlet tip starts clean in masonry without pre-drilling a separate clearance hole, while the hex washer head seats securely for a neat, finished appearance
• Fast and Easy Installation - designed as a direct-drive screw anchor into concrete and masonry block, eliminating extra steps and reducing installation time on the job site
• Serves the Same Purpose as Tapcon Screws - a familiar installation method for trade professionals, with the added benefit of stainless steel durability and Stalgard coating protection
• 1/4 in. x 1-3/4 in. Dimensions - a versatile size suited to light duty fixture mounting, screen enclosure framing, and storm shutter installation
• Silver Finish - clean, professional appearance once installed, complementing trim and enclosure hardware without standing out negatively

Why This Product

• Built for Corrosive Environments - where carbon steel fasteners rust and fail, the combination of 410 stainless steel and Stalgard coating (1000 hours of salt spray resistance per ASTM B117) keeps connections secure and corrosion-free in humid, coastal, and outdoor settings
• Approved for Florida and Miami-Dade Applications - backed by Miami-Dade County NOA No. 21-0201.08 and Florida Statewide Product Approval FL29068.1, this anchor meets the strict wind and weather resistance standards required in high-velocity hurricane zones
• No Separate Insert Needed - unlike traditional anchor bolt systems, this screw anchor threads directly into concrete or masonry block, saving installation time and reducing the number of components needed on site
• Tested to ASTM E488 - structural performance is validated through recognized industry testing standards, giving engineers and inspectors confidence in the anchor's load and installation performance

Specifications

• Brand: DeWALT
• Product Type: UltraCon Screw Anchor
• Diameter: 1/4 in.
• Length: 1-3/4 in.
• Primary Material: 410 Stainless Steel
• Finish: Silver
• Head Style: Hex Washer Head
• Point Type: Gimlet Point
• Connection Design: Concrete and Masonry
• Weight: 0.023 lb.
• Country of Origin: Taiwan
• Warranty: N/A

Available Pack Options

• DFM4EUH315: 100 Pk
• DFM4EUH315 -5: 500 Pk

Approved Applications

• Screen Enclosures
• Storm Shutters
• Light Duty Fixtures
• Light Duty Industrial Mounts
• Concrete Base Material
• Masonry Block Base Material

Frequently Asked Questions

What base materials is this screw anchor designed for?

The UltraCon SS4 anchor is designed for light to medium duty applications in concrete and masonry block base materials. It threads directly into the base material without requiring a separate insert or sleeve anchor.

How does the Stalgard coating improve corrosion resistance?

The Stalgard coating provides 1000 hours of salt spray protection when tested in accordance with ASTM B117. Combined with the special heat treatment applied to the 410 stainless steel, this makes the anchor significantly more resistant to corrosion than standard carbon steel fasteners - an important advantage in outdoor, coastal, or humid installation environments.

Is this anchor approved for use in Florida or high-velocity hurricane zones?

Yes. The UltraCon SS4 has been tested in accordance with ASTM E488 and carries Miami-Dade County Notice of Acceptance (NOA) No. 21-0201.08 as well as Florida Statewide Product Approval FL29068.1, making it suitable for use in areas with strict wind resistance requirements.

How does this anchor compare to standard Tapcon screws?

The UltraCon SS4 serves the same purpose as what is commonly known as Tapcon screws, using a familiar direct-drive installation method into concrete or masonry. The key advantage is that the 410 stainless steel construction and Stalgard coating offer enhanced corrosion resistance compared to standard carbon steel Tapcon-style fasteners, making this a better choice for applications where moisture or corrosive conditions are a concern.

Downloads and Resources

• View Spec Sheet

Note: The image displayed is a generic representation of the type of product. Product dimensions and/or thread length may differ from picture.