Grade 5 dual-hardened concrete/masonry screw anchoring system

Transcription

1 Innovative Fastening Technology NEW! #14 Diameter Grade 5 dual-hardened concrete/masonry screw anchoring system Virtually immune to embrittlement failure! 1

2 The #14 Conflex has a more robust cross-sectional area to deliver a significant improvement in connection strengths! Performance Value Conventional 1/4" Screw Fastener Shear (Lbs. Force) #14-6 ConFlex NEW! #14 Diameter Grade 5 dual-hardened concrete/masonry screw anchoring system Virtually immune to embrittlement failure! 72% INCREASE Pull-Out (Lbs. Force) 1,500 2, % INCREASE 2,630 3,008 * Ultimate Load Capacity at 6,000 PSI Normal Weight Concrete 1-3/4" Embedment The extraordinary performance capability of the #14-6 ConFlex screw-anchor is a result of its larger tensile stress area and ductile characteristics. New #14 diameter ConFlex Standard 1/4" diameter Thread diameter 0.275" 0.255" Minor or root diameter 0.210" 0.161" Unthreaded section 0.220" 0.189" Tensile stress area IN² 56% Larger Stress Area! IN² Heat Treatment Grade 5 dual-hardened process. The Load Bearing Area is Grade 5 hardened (Rockwell C 28-34) and the lead threads are heat treated to a higher hardness level for thread tapping capability. Case hardened; General industry standards for hardness is RC 52 min. on case and RC for the core. Immune to embrittlement failure? Yes No Hex Head Flat Head Trim Fit Flat Head Dual Lead Threads For Quicker Installations Enlarged Unthreaded Shank Diameter Higher Hardness Zone For Efficient Thread Tapping Grade 5 Hardness Zone For Strength And Ductility

3 #14 ConFlex Grade 5 dual-hardened concrete / masonry screw anchoring system Product Snapshot Nominal Diameter: #14 Lengths in inches: 1-3/4, 2-1/4, 2-3/4, 3-1/4, 3-3/4 Drill Bit Diameter 7/32" ANSI Dimensions: Thread Major Dia. (nom.).0275" Thread Minor Dia. (nom.) 0.210" Unthreaded Shank Dia " Head Styles: Hex Washer Head, Flat Phillips Head, Trimfit Phillips Flat Head Mechanical Characteristics Ultimate Load (Lbs.) Tensile Yield (Fy) 4225 lbs Tensile Ultimate (Fu) 4750 lbs Tensile stress area: in 2 The over-sized #14 diameter ConFlex screw-anchor provides virtual immunity to embrittlement failure. Embrittlement failure of screws can be caused by hydrogen assisted stress corrosion cracking (HASCC) as a result of dissimilar metal connections in the presence of moisture. With the enhanced ductility of Grade 5 dual-hardened ConFlex screws, you won't encounter "broken blue screws" anymore! In addition, with its over-sized design and patented thread profile, it provides enhanced anchor and connection strengths compared to the common alternating high and low thread design of standard concrete screws. - Virtual immunity to embrittlement failure - Superior connection strengths compared to conventional 1/4" concrete screws for higher performance! - Ideal for store-front and curtain wall construction! Typical Applications - Storefront & Curtain wall - Hurricane Shutter Framing - Window Frames - Shelving & Racking - Impact Resistant Windows - Wood to Concrete or CMU Features Grade 5 dual-hardened heat treatment process (Flex Technology ) Large, oversized fastener dimensions (Thread O.D., minor diameter & unthreaded section) Patented 40/45 V-Notched threads Excellent corrosion resistance Multiple corrosion resistant finishes Alpha-numeric length head-marking codes Elco's Grade 5 dual-hardened head mark (Elco logo within circle) Benefits Virtual immunity to embrittlement failure & enhanced ductility Enhanced thread engagement, higher connection performance & enhanced screw-anchor strength Higher strip-out resistance in lower compression strength materials - Stalgard SUB: 2,000 hrs. exposure with no red rust - Silver & White Stalgard: 1,000 hrs. exposure without red rust (per ASTM B117) At inspection,ensures proper screw-anchor length has been used At inspection, ensures proper screw-anchor has been used Drive & Head Styles HWH Hex Washer Head TFH Phillips Trimfit Flat Head PFH Phillips Flat Head Drive 3/8" Hex #3 Bit Drive #3 Bit Drive Washer Face Diameter 0.520" NA NA Head Diameter 0.400" 0.460" Head Height 0.240" 0.158" 0.210" Flare Corrosion Resistance Finish The #14 ConFlex masonry screws are available in two excellent corrosion resistant coatings. The hex head version is fully coated in Stalgard SUB. This coating resists red rust for more than 2,000 hours salt spray exposure per ASTM B117. The Flat and Trim head versions come with the standard Stalgard coating and provide more than 1,000 hours of salt spray exposure resistance per ASTM B117. All Stalgard finishes are RoHS compliant (Chrome-Free).

4 Installation 1. Determine embedment depth. Anchor embedment is the distance from the tip of screw to surface of the base material. Account for the fixture thickness when selecting a screw length. 2. Drill a pilot hole with a standard ANSI 7/32" masonry drill bit a minimum of 1/4" deeper than desired embedment. 3. Using an appropriately sized driver bit and impact wrench drive the fastener into the pilot hole until flush with the fixture. Do Not over drive the fastener. The #14 ConFlex provides exceptional pull-out and shear values - a significant advantage for lowering installation costs and long term connection integrity Performance Data Base Material Concrete (2,500 PSI) Concrete (3,500 PSI) Concrete (6,000 PSI) Anchor Embedment #14 ConFlex Distance Tension Capacity (Lbs.) Shear Capacity (Lbs.) Edge Spacing Ultimate Allowable Ultimate Allowable 1" 1-1/2" 1-1/2" " " 1-1/2" " /4" 1-1/2" 1-1/2" " " 1-1/2" " " " 1-1/2" 1-1/2" " " 1-1/2" " /4" 1-1/2" 1-1/2" " " 1-1/2" " " " 1-1/2" 1-1/2" " " 1-1/2" " /4" 1-1/2" 1-1/2" " " 1-1/2" " " Drill hole ANSI 7/32" diameter; minimum 1/4" deeper than anchor embedment Anchor embedment = Fixture depth + length of screw Drive with impact wrench and driver bit. Do NOT over drive. Grade 5 hardness zone for strength and ductility. #14 ConFlex fasteners after Shear Test 4 Grouted CMU 1-3/4" 1-1/2" 1-1/2" " " 1-1/2" " " /4" 1-1/2" 6" " 6" Hollow CMU 1" 1" 1" " " 1" " " Concrete Hollow Blocks 2000 PSI Normal Weight Concrete per ASTM C-90 For each listed embedment, linear interpolation may be used for intermediate spacing and edge distances. Indicated tension and shear values listed were obtained in tests conducted at an independent lab. These values have had an applied safety factor of 5:1 or 20% for CMU Data; 4:1 or 25% for Concrete Data (top table) of the average ultimate value obtained. These reductions are generally accepted practices for safe working loads; Note additional reductions may be advisable based upon actual anchoring conditions. It is always recommended to have a professional engineer review anchoring conditions for long-term and safe connections. Reference should always be made to applicable building codes for specific safe allowable loads.

5 #14 ConFlex ConFlex #14-6 Ordering information Part Number Length Head Style Coating/Color Pkg. Qty. EMR /4" Hex Washer Head Stalgard SUB - Silver 1,000 EMR /4" (2,000 hr) 1,000 EMR /4" 800 EMR /4" 500 EMR /4" 500 EMR /4" # 3 Phillips Flat Head Stalgard - Silver 2,000 EMR /4" (1,000 hr) 1,500 EMR /4" 1,000 EMR /4" 1,000 EMR /4" 500 EMR /4" #3 Phillips Trim Flat Head Stalgard - Silver 2,000 EMR /4" (1,000 hr) 1,500 EMR /4" 1,000 EMR /4" 1,000 EMR /4" 500 EMR /4" Stalgard - White EMR /4" (1,000 hr) 1,000 EMR /4" 1,000 Note: Length measured under head for hex head anchors, total length for flat head and trim flat head anchors. See diagram above. L L Drill Bit Drill Diameter Overall Length Usable Bit Length Drill Bit Shank Type EMC100 7/32" 4-1/2" 2-3/4" Tanged EMC110 ANSI 5-1/2" 4" EMC130 7" 4" Hex SDS 5 Water Molecule Free Hydrogen Steel Screw (Cathode) Moisture H 2 O (Electrolyte) Aluminum Fixture (Anode) Galvanic reaction occurs when dissimilar metals are in contact in the presence of moisture HASCC - Hydrogen Assisted Stress Corrosion Cracking Why does HASCC occur? Free hydrogen atoms are generated in galvanic reactions as a result of a dissimilar metal connection in the presence of moisture. Free hydrogen atoms are also generated in similar metal connections involving steel as the result of the normal corrosion process. Why is HASCC dangerous? The free hydrogen enters the fastener through microscopic surface cracks. Providing the fastener has a hardness equal to or greater than Rockwell C35 and is under stress and / or load, the crystalline structure of the hardened steel is broken down or split apart. As the propagation of the cracks in the steel continues, the functional cross sectional area of the screw is reduced significantly. Then, without notice, the screw's remaining cross sectional area can not maintain the load that it is under and sudden catastrophic failure occurs. This sequence can occur within a day, days, months or years. How is HASCC Controlled? Through the use of high quality steel alloys and a heat treatment process that results in Grade 5 metallurgical properties, strength and significantly enhanced ductility are achieved. It is the Grade 5 ductility that provides virtual immunity to embrittlement failure.

6 Proud Member of: Warranty and Limitation of Liability: All warranties of the Elco products, expressed or implied, including the warranties of merchantability and fitness for particular purposes are specifically excluded for the following: Elco will repair any product which, within twelve months after sales by Elco Construction Products or its distributors, is found by Elco to be defective in material or workmanship normal wear and tear excepted. This is the sole warranty of Elco Construction Products and the sole remedy available to distributor or buyer. Elco shall not be liable for any injury, loss of damage, direct, incidental or consequential, arising from use of, or the inability to use, any Elco product. Elco Construction Products has strived for total accuracy throughout this catalog. However, Elco Construction Products shall not be liable or responsible for any typographical errors or changes in product offering that may occur. If any questions arise as to the accuracy of this catalog, please contact us at E. Joppa Road, Towson MD Phone: (USA & Canada) Fax: Elco Construction Products. All Rights Reserved. Rev. 1/16 N Elco, Aggre Gator, Alumi-Flex, Bi Flex, Crete-Flex, ConFlex, Dril-Flex, Drilltite, Fab-Lok, Flex Technology, Flo-Seal, HangerMate, Stalgard, Tapfast, Tap-Flex, Topseal, TrimFit, UltraCon and Infastech are trademarks of ElcoConstruction Products. Avdel is a registered trademark of Avdel UK Ltd. AllFlex is a trademark of Alloy Fasteners, Inc. Dewalt is a registered trademark of The Black & Decker Corporation. Scrubolt is a trademark of Butler Manufacturing Company. Pantone is a registered trademark of Pantone, Inc.