Elco Construction Fastener Product Lines - Self-Drilling / Tek Screws, Self-Tapping, Thread-Forming & Masonry & Concrete Screws

Elco Drilit® Self-Drilling Fasteners
Self-Drilling Fasteners for a Wide Range of Applications

Elco Alumi-Flex™ 302 (18-8) Stainless Steel Self-Drilling Screws
Fastening to Aluminum when Corrosion & Galvanic Reaction are a Primary Concern
- Part of the Elco Flex Technology Family - Learn More
- Provide strength & corrosion resistance in a variety of aluminum applications
- Provides a very high level of corrosion resistance
- Coating allows greater galvanic compatibility in dissimilar metal applications involving aluminum

Elco FLEX Technology fasteners surpass any standard fastening format available, allowing designers and system manufacturers to manage their risk and enhance the performance of critical connections.


Elco Bi-Flex™ 300 Series Stainless Steel Bi-Metal Self-Drilling Screws
Bi-Metal Technology Provides Outstanding Corrosion Resistance & Long Service life
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High strength, ductility and reliability
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Virtually immune to delayed embrittlement failures
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Greater galvanic compatibility in dissimilar metal applications involving aluminum

Elco Dril-Flex® Structural Self-Drilling Screws
Virtually Immune to Delayed Embrittlement Failures
- Part of the Elco Flex Technology Family - Learn More
- Dril-Flex Structural Self-Drilling Screws Technical Data Page
- Dual heat treated drill screws provide the strength, ductility & resistance to embrittlement required for critical applications
- Stalgard SUB coating provides 2000 hours of salt spray resistance per ASTM B117
- High-hardness points & lead threads for drilling & tapping with lower-hardness in load-bearing threads for ductility

Elco Tap-Flex™ Thread-Forming Structural Screws
Increased Thread Engagement with Strength & Ductility
- Part of the Elco Flex Technology Family - Learn More
- Tap-Flex Thread-Forming Structural Screws Technical Data Page
- Decreases thread-forming torque, easing starting & placement
- Overcomes friction build-up & reduces drive torque
- Increases thread engagement, so it resists back-out & loosening caused by vibration or thermal changes

Elco TapFast® Self-Tapping Fasteners
Designed for Use in Metal-to-Wood Applications
- Incorporates bonded sealing washer for a water-tight seal
- High-low thread increases performance for easy penetration of multiple panel thicknesses
- Stalgard® coating provides 1000 hours of salt spray resistance per ASTM B117

Elco Fab-Lok® Blind Metal Fasteners
Maintain Panel Integrity in High-Stress and High-Vibration Environments
- Combine a slotted aluminum sleeve & fastener to provide high resistance to vibration loosening
- Excellent for use with insulated panels & greater joint integrity
- Hex washer head machine screw assembled to a slotted aluminum sleeve and EPDM sealing washer

Elco Aggre-Gator® Bi-Metal Masonry Fasteners
Corrosion Resistance of 300 Series Stainless Steel in a Threaded Concrete Anchor
- Part of the Elco Flex Technology Family - Learn More
- Aggre-Gator Stainless Steel Concrete Anchors Technical Data Page
- High strength and ductility & outstanding corrosion resistance
- Offers greater galvanic compatibility in dissimilar metal applications involving aluminum
- Alternating, hi-low notched thread profile provides quick cutting & stability during installations

Elco UltraCon® Masonry Fasteners & Concrete Screws
Corrosion Resistance of 300 Series Stainless Steel in a Threaded Concrete Anchors
- UltraCon Masonry Fasteners Technical Data Page
- Optimal solution for concrete, brick or hollow block
- Fastener threads mechanically link to masonry, increasing joint integrity with excellent pull-out and shear values
- Blue Stalgard® corrosion-resistant finish withstands a minimum of 800 hours salt spray per ASTM B117
- View Our Full Line of UltraCon® Masonry Fasteners & Concrete Screws Here

Elco UltraCon® SS4 Masonry Anchors
Outstanding Corrosion Resistance of Stalgard® Coating Over 410 Stainless Steel
- Silver Stalgard® coating provides 1600 hours of salt spray protection per ASTM B117
- Excellent solution for highly-corrosive environments
- Miami-Dade County Notice of Acceptance (NOA) No. 19-0619.01

Elco Crete-Flex® SS4 Concrete Screw Anchors
Extraordinary Corrosion Resistance & Fastener Performance
- Deliver corrosion resistance, enhanced ductility, high pull-out & shear values
- Heavy-duty, v-notched thread with larger crosssectional area
- Silver Stalgard® corrosion-resistant finish provides 1600 hours of salt spray resistance per ASTM B117
