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

View Our Full Line of Drilit^® Self-Drilling Fasteners Here

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

View Our Full Line of Alumi-Flex™ Self-Drilling Screws Here

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

View Our Full Line of Bi-Flex™ Bi-Metal Self-Drilling Screws Here

Elco Bi-Flex™ 300 Series Stainless Steel Bi-Metal Self-Drilling Screws
Bi-Metal Technology Provides Outstanding Corrosion Resistance & Long Service life

Part of the Elco Flex Technology Family - Learn More
Bi-Flex Bi-Metal Self-Drilling Screws Technical Data Page
High strength, ductility and reliability
Virtually immune to delayed embrittlement failures
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

View Our Full Line of Dril-Flex^®Structural Self-Drilling Screws Here

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

View Our Full Line of Tap-Flex™ Thread-Forming Structural Screws Here

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

View Our Full Line of TapFast^® Self-Tapping Fasteners Here

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

View Our Full Line of Fab-Lok^® Blind Metal Fasteners Here

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

View Our Full Line of Aggre-Gator^® Bi-Metal Masonry Fasteners Here

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

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

View Our Full Line of UltraCon® SS4 Masonry Anchors Here

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

View Our Full Line of Crete-Flex® SS4 Concrete Screw Anchors Here

<div id="contentWrap">  <div class="flex-content-container"> <div class="col"> <a href="/fasteners/blind-metal-fastening/fab-lok-panel-rivet-fasteners" title="Elco Fab-Lok® Blind Metal Fasteners"><img src="/media/wysiwyg/tanimg/dept-pages/bnr-box_elcoFabLokLogo.jpg" alt="Fab-Lok Logo" class="ElcoFabLok" style="width:350px;height:219px" align="middle"> <h2>Elco Fab-Lok® Blind Metal Fasteners</h2></a> <h3>Maintain Panel Integrity in High-Stress and High-Vibration Environments</h3> <ul> <li>Combine a slotted aluminum sleeve & fastener to provide high resistance to vibration loosening</li> <li>Excellent for use with insulated panels & greater joint integrity</li> <li>Hex washer head machine screw assembled to a slotted aluminum sleeve and EPDM sealing washer</li> </ul> <h3><a href="/fasteners/blind-metal-fastening/fab-lok-panel-rivet-fasteners" title="View Our Full Line of Fab-Lok® Blind Metal Fasteners Here">View Our Full Line of Fab-Lok® Blind Metal Fasteners Here</a></h3> </div> <div class="col"> <a href="#" title="Elco ConFlex® Large Diameter Masonry Screws"><img src="/media/wysiwyg/tanimg/dept-pages/bnr-box_elcoConFlexLogo.jpg" alt="ConFlex Logo" class="ElcoConFlex" style="width:350px;height:219px" align="middle"> <h2>Elco ConFlex® Large Diameter Masonry Screws</h2></a> <h3>Large Diameter Masonry Fasteners Virtually Immune to Embrittlement Failures</h3> <ul> <a href="/flex-technology" title="Learn More About Elco's Flex Technology" target="new"><li><strong>Part of the Elco Flex Technology Family - Learn More (opens in new window)</strong></li></a> <li>High resistance to hydrogen-assisted stress corrosion cracking (HASCC) while in service</li> <li>Silver Stalgard® finish provides exceptional corrosion resistance - 800 to 1,000 hours without red rust in salt spray testing per ASTM B117</li> <li>Provides high pull-out and shear values with low installation torque</li> </ul> <h3>Product No Longer Available</h3> </div> <div class="col"> <a href="/anchors/mechanical-anchors/mechanical-screw-anchors/aggre-gatorr-300-series-stainless-bi-metal-concrete-masonry-fasteners" title="Elco Aggre-Gator® Bi-Metal Masonry Fasteners"><img src="/media/wysiwyg/tanimg/dept-pages/bnr-box_elcoAggreGatorLogo.jpg" alt="Aggre-Gator Logo" class="ElcoAggreGator" style="width:350px;height:219px" align="middle"> <h2>Elco Aggre-Gator® Bi-Metal Masonry Fasteners</h2></a> <h3>Corrosion Resistance of 300 Series Stainless Steel in a Threaded Concrete Anchor</h3> <ul> <a href="/flex-technology" title="Learn More About Elco's Flex Technology" target="new"><li><strong>Part of the Elco Flex Technology Family - Learn More (opens in new window)</strong></li></a> <li><a href="/trc/post/tech-data-elco-aggre-gator" title="Aggre-Gator Stainless Steel Concrete Anchors Technical Data Page">Aggre-Gator Stainless Steel Concrete Anchors Technical Data Page</a></li> <li>High strength and ductility & outstanding corrosion resistance</li> <li>Offers greater galvanic compatibility in dissimilar metal applications involving aluminum</li> <li>Alternating, hi-low notched thread profile provides quick cutting & stability during installations</li> </ul> <h3><a href="/anchors/mechanical-anchors/mechanical-screw-anchors/aggre-gatorr-300-series-stainless-bi-metal-concrete-masonry-fasteners" title="View Our Full Line of Aggre-Gator® Bi-Metal Masonry Fasteners Here">View Our Full Line of Aggre-Gator® Bi-Metal Masonry Fasteners Here</a></h3> </div> </div> <div class="flex-content-container"> <div class="col"> <a href="//anchors/mechanical-anchors/mechanical-screw-anchors" title="Elco UltraCon® Masonry Fasteners & Concrete Screws"><img src="/media/wysiwyg/tanimg/dept-pages/bnr-box_elcoUltraConLogo.jpg" alt="UltraCon Logo" class="ElcoUltraCon" style="width:350px;height:219px" align="middle"> <h2>Elco UltraCon® Masonry Fasteners & Concrete Screws</h2></a> <h3>Corrosion Resistance of 300 Series Stainless Steel in a Threaded Concrete Anchor</h3> <ul> <li><a href="/trc/post/tech-data-elco-ultra-con" title="UltraCon Masonry Fasteners Technical Data Page">UltraCon Masonry Fasteners Technical Data Page</a></li> <li>Optimal solution for concrete, brick or hollow block</li> <li>Fastener threads mechanically link to masonry, increasing joint integrity with excellent pull-out and shear values</li> <li>Blue Stalgard® corrosion-resistant finish withstands a minimum of 800 hours salt spray per ASTM B117</li> </ul> <h3><a href="/trc/post/tech-data-elco-ultra-con" title="View Our Full Line of UltraCon® Masonry Fasteners & Concrete Screws Here">View Our Full Line of UltraCon® Masonry Fasteners & Concrete Screws Here</a></h3> </div> <div class="col"> <a href="/anchors/mechanical-anchors/mechanical-screw-anchors/ultraconr-ss4-concrete-masonry-fasteners" title="Elco UltraCon® SS4 Masonry Anchors"><img src="/media/wysiwyg/tanimg/dept-pages/bnr-box_elcoUltraConSS4.jpg" alt="UltraCon SS4 Logo" class="ElcoUltraConSS4" style="width:350px;height:219px" align="middle"> <h2>Elco UltraCon® SS4 Masonry Anchors</h2></a> <h3>Outstanding Corrosion Resistance of Stalgard® Coating Over 410 Stainless Steel</h3> <ul> <li>Silver Stalgard® coating provides 1600 hours of salt spray protection per ASTM B117</li> <li>Excellent solution for highly-corrosive environments</li> <li>Miami-Dade County Notice of Acceptance (NOA) No. 19-0619.01</li> </ul> <h3><a href="/anchors/mechanical-anchors/mechanical-screw-anchors/ultraconr-ss4-concrete-masonry-fasteners" title="View Our Full Line of UltraCon® SS4 Masonry Anchors Here">View Our Full Line of UltraCon® SS4 Masonry Anchors Here</a></h3> </div> <div class="col"> <a href="/anchors/mechanical-anchors/mechanical-screw-anchors/crete-flexr-410-stainless-steel-concrete-masonry-fasteners" title="Elco Crete-Flex® SS4 Concrete Screw Anchors"><img src="/media/wysiwyg/tanimg/dept-pages/bnr-box_elcoCreteFlex.jpg" alt="Crete-Flex SS4 Logo" class="ElcoCreteFlexSS4" style="width:350px;height:219px" align="middle"> <h2>Elco Crete-Flex® SS4 Concrete Screw Anchors</h2></a> <h3>Extraordinary Corrosion Resistance & Fastener Performance</h3> <ul> <li>Deliver corrosion resistance, enhanced ductility, high pull-out & shear values</li> <li>Heavy-duty, v-notched thread with larger crosssectional area</li> <li>Silver Stalgard® corrosion-resistant finish provides 1600 hours of salt spray resistance per ASTM B117</li> </ul> <h3><a href="/anchors/mechanical-anchors/mechanical-screw-anchors/crete-flexr-410-stainless-steel-concrete-masonry-fasteners" title="View Our Full Line of Crete-Flex® SS4 Concrete Screw Anchors Here">View Our Full Line of Crete-Flex® SS4 Concrete Screw Anchors Here</a></h3> </div> </div> </div>

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

Elco Alumi-Flex™ 302 (18-8) Stainless Steel Self-Drilling ScrewsFastening to Aluminum when Corrosion & Galvanic Reaction are a Primary Concern

Elco Bi-Flex™ 300 Series Stainless Steel Bi-Metal Self-Drilling ScrewsBi-Metal Technology Provides Outstanding Corrosion Resistance & Long Service life

Elco Dril-Flex® Structural Self-Drilling ScrewsVirtually Immune to Delayed Embrittlement Failures

Elco Tap-Flex™ Thread-Forming Structural ScrewsIncreased Thread Engagement with Strength & Ductility

Elco TapFast® Self-Tapping FastenersDesigned for Use in Metal-to-Wood Applications

Elco Fab-Lok® Blind Metal FastenersMaintain Panel Integrity in High-Stress and High-Vibration Environments

Elco Aggre-Gator® Bi-Metal Masonry FastenersCorrosion Resistance of 300 Series Stainless Steel in a Threaded Concrete Anchor

Elco UltraCon® Masonry Fasteners & Concrete ScrewsCorrosion Resistance of 300 Series Stainless Steel in a Threaded Concrete Anchors

Elco UltraCon® SS4 Masonry AnchorsOutstanding Corrosion Resistance of Stalgard® Coating Over 410 Stainless Steel

Elco Crete-Flex® SS4 Concrete Screw AnchorsExtraordinary Corrosion Resistance & Fastener Performance

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