DEWALT Aggre-Gator 304 SS Bi-Metal Masonry Screws – 50/Box
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AGGRE-GATOR® HEX WASHER HEAD BI-METAL CONCRETE AND MASONRY FASTENERS
The Aggre-Gator® Hex Washer Head Fastener is a high-performance bi-metal screw anchor designed for light- to medium-duty fastening into concrete and masonry block. Built with 300 series stainless steel and a hardened steel drilling tip, Aggre-Gator® fasteners combine excellent corrosion resistance with the strength needed for reliable installation in demanding environments.
These fasteners install quickly and provide a clean, finished appearance, making them ideal for contractors working in exposed or corrosive conditions where long-term durability matters.
FEATURES
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Bi-metal construction – combines hardened steel cutting threads with 300 series stainless steel for strength and corrosion resistance
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Long-term corrosion protection – ideal for exposed environments and demanding applications
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High in-place value – provides reliable holding power over the life of the structure
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Excellent strength and ductility – engineered for dependable performance in masonry substrates
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Stalgard® GB coating – improves galvanic compatibility when fastening dissimilar metals, including aluminum
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Salt spray resistance – coated fasteners typically show no base metal corrosion on significant surfaces after 500 hours of salt spray exposure (ASTM B117)
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Aggressive thread profile – cuts quickly into masonry for fast installation
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Gimlet point – allows installation into wood without pre-drilling
APPLICATIONS
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Fastening into concrete
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CMU / masonry block applications
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Exterior installations exposed to weather
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Metal components attached to masonry
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Construction requiring corrosion-resistant fasteners
MATERIAL
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300 Series Stainless Steel Bi-Metal Construction
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Hardened cutting threads
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Stalgard® GB corrosion-resistant coating
APPROVALS
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Tested in accordance with ASTM E488
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Miami-Dade County Notice of Acceptance (NOA) No. 21-0201.08
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Florida Statewide Product Approval FL29068.1
SPECIFICATIONS
| Catalog Number | Head Style | Anchor Size | Thread Length | Anchor Material | Driver | Pack Qty | Drill Bit Reference |
|---|---|---|---|---|---|---|---|
| DFM3EML300 | Hex Washer | 1/4" x 1-1/4" | 1-1/8" | 304 Stainless Steel | 5/16" Hex | 50 | 3/16" UltraCon+ bit |
| DFM3EML315 | Hex Washer | 1/4" x 1-3/4" | 1-5/8" | 304 Stainless Steel | 5/16" Hex | 50 | 3/16" UltraCon+ bit |
| DFM3EML325 | Hex Washer | 1/4" x 2-1/4" | 1-7/8" | 304 Stainless Steel | 5/16" Hex | 50 | 3/16" UltraCon+ bit |
| DFM3EML345 | Hex Washer | 1/4" x 3-1/4" | 1-7/8" | 304 Stainless Steel | 5/16" Hex | 50 | 3/16" UltraCon+ bit |
RESOURCES