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Fasteners 8_17.qxp_Layout 1  8/18/17  11:55 AM  Page 7

            SELF-DRILLING SCREWS





             SELF-DRILLING SCREWS

              Embrittlement Tests
             Embrittlement testing of Dril-Flex screws was performed  Hex Washer Head Dril-Flex Structural Drill Screws Heat Treated       Made In USA
             in accordance to ASTM F1624-06. Fastener lots were  ITEM  SIZE    PT.                   HEAD                 LOAD BEARING       BOX            ITEM                                            CARTON            FINISH
                                                           CODE                                                                                       SIZE                SIZE                     AREA (INCHES)      QTY.            CODE   QTY.
             tested to determine their Threshold Stress Limits for both
                                                           ELC EAF430           #10 x 3/4"                     #3  5/16"              .380"  100          ELC EAF430/BULK     6000  Stalgard SUB
             Internal Hydrogen Embrittlement and Environmental   ELC EAF460  #10 x 1-1/2"  #3  5/16"  1.25"  100  ELC EAF460/BULK 2500  Stalgard SUB
                                                           ELC EAF470  #10 x 2"  #3  5/16"  1.50"  100  ELC EAF470/BULK 2000  Stalgard SUB
             Hydrogen Embrittlement. Threshold Stress Limit is the
                                                           ELC EAF480  #10 x 2-1/2"  #3  5/16"  2.25"  100  ELC EAF480/BULK 1500  Stalgard SUB
             stress level below which no time-dependent cracking will  ELC EAF621*  #12 x 7/8"  #3  5/16"  .380"  100  ELC EAF621/BULK* 5000  Stalgard SUB
                                                           ELC EAF641  #12 x 1"  #3  5/16"  .500"  100  ELC EAF641/BULK 4000  Stalgard SUB
             occur. Above this level, subcritical cracking that leads
                                                           ELC EAF681  #12 x 1-1/2"  #3  5/16"  1.00"  100  ELC EAF681/BULK 2500  Stalgard SUB
             to time‑delayed fracture or embrittlement may occur if  ELC EAF690  #12 x 2"  #3  5/16"  1.50"  100  ELC EAF690/BULK 2000  Stalgard SUB
             the fastener is exposed to a hydrogen environment.  ELC EAF715  #12 x 3"  #3  5/16"  2.35"  100  ELC EAF715/BULK 1000  Stalgard SUB
                                                           ELC EAF816  #14 x 1"  #3  3/8"  .450"  100  ELC EAF816/BULK 3000  Stalgard SUB
                                                           ELC EAF841  #14 x 1-1/2"  #3  3/8"  .950"  100  ELC EAF841/BULK 2000  Stalgard SUB
              Embrittlement Test Results                   ELC EAF876  1/4"-20 x 1-1/2"  #4  3/8"  .830"  100  ELC EAF876/BULK 2000  Stalgard SUB
                                                           ELC EAF846  #14 x 2"  #3  3/8"  1.45"  100  ELC EAF846/BULK 1500  Stalgard SUB
             • Dril-Flex fasteners have a hardness range of HRC 28 –  ELC EAF886  1/4"-20 x 2"  #4  3/8"  1.33"  100  ELC EAF886/BULK 1500  Stalgard SUB
                                                           ELC EAF865  1/4"-20 x 1-1/8"  #4  3/8"  .500"  100  ELC EAF865/BULK 2500  Stalgard SUB
             34,                                           ELC EAF888  1/4"-20 x 1-3/4"  #5  3/8"  .800"  100  ELC EAF888/BULK 1000  Stalgard SUB
              which is roughly equivalent to a SAE Grade 5 fastener    ELC EAF890  1/4"-20 x 2-1/2"  #4  3/8"  1.83"  100  ELC EAF890/BULK 1000  Stalgard SUB
                                                           ELC EAF900  1/4"-20 x 3-3/8"  #4  3/8"  .270"  100  ELC EAF900/BULK 500  Stalgard SUB
              (HRC 25 – 34).                               ELC EAF910  1/4"-20 x 4"  #4  3/8"  3.50"  100  ELC EAF910/BULK 500  Stalgard SUB
             • Dril-Flex fasteners showed resistance to the effect of   ELC EAF940           5/16"-18 x 1-1/2" #3  3/8"  .800"  100  ELC EAF940/BULK 1000  Stalgard SUB
                                                           ELC EAF960  5/16"-24 x 1-1/2" #4  3/8"  .800"  100  ELC EAF960/BULK 1000  Stalgard SUB
              hydrogen-assisted cracking when loaded to 75% of their
                                                           ELC EAF970  5/16"-24 x 2"  #4  3/8"  1.25"  100  ELC EAF970/BULK 1000  Stalgard SUB
              tensile strength. This is within accepted industry guide  ELC EAF310  3/8"-16 x 1-3/4"  #1  3/8"  .850"  100  ELC EAF310/BULK 500  Stalgard SUB
              lines for in‑service loading conditions.
             • Dril-Flex fasteners showed no degradation or failures in   * For aluminum only




                                                             Hex Washer Head                              Undercut Head                                  Pan Head                             Wafer Head
               Distinctive                                 IMPORTANT:
                circled                                    To ensure optimum performance, only the load bearing area should be engaged in the material to be fastened
                  ®
               Elco logo
              headmarking                                  Phillips Head Dril-Flex Structural Drill Screws Heat Treated - Made In USA
                                           Lower-hardness
                                           (HRC 28-34)     ITEM     SIZE      PT.           HEAD                          DRIVE      LOAD BEARING   BOX      ITEM                                       CARTON            FINISH
                                                           CODE                                                                                  SIZE        STYLE                          SIZE          AREA (INCHES)  QTY.      CODE   QTY.
                                           load-bearing
                                           section provides  ELC EDX445  #10 x 3/4"  #2       Pan Head   #2  .380"  100 ELC EDX445/BULK 6000  Stalgard
                                                                                 Phillips
                      Stalgard ®           ducility
                                                           ELC EBL530  #10-24 x 1-1/4" #3  Wafer Head #2  .750"  100 ELC EBL530/BULK 5000  Stalgard
                       finish                                                    Phillips
                      provides                             ELC EBL215  #12 x 1"  #3  Flat Head  #3  .500"  100 ELC EBL215/BULK 4000  Stalgard
                      corrosion            Higher-hardness                       U/C Phillips
                      resistance           (HRC 28-52 min.)   ELC EBL223  #12 x 1-1/2"  #3  Flat Head  #3  1.00"  100 ELC EBL223/BULK 2500  Stalgard
                                           drill point and lead                  U/C Phillips
                                           threads for reliable  ELC EBL330  1/4"-20 x 3"  #4  Flat Head   #3  2.50"  100 ELC EBL330/BULK 500  Stalgard
                                           drilling                              U/C Phillips
                                                           ELC EBL340  1/4"-20 x 4"  #4  Flat Head   #3  3.50"  100 ELC EBL340/BULK 500  Stalgard
                                                                                 U/C Phillips







                                                           NOTE: All performance data shown is based on tests performed under laboratory conditions at independent construction testing facilities.
                                                           The appropriate safety factor should be applied and code requirements factored into specification and use of these fasteners. A safety factor of 4:1
                                                           or 25% of the ultimate average values shown is generally accepted as an appropriate working load. Final determination of the appropriate safety
                                                           factor and use of these fasteners is the sole responsibility of the user, specifying Engineer, Architect or other responsible person designing the
                                                           connection. Due to a wide variety of application conditions or intervening factors not under our control, we assume no liability for the use of the
                                                           information provided in this document.
                                                           For additional product information and technical assistance, please contact a Tanner Representative.
                                                                                                                             7
                                                 www.shoptanner.com         email: sales@tannerbolt.com        800 456-2658
                                                 714 Montauk Ave., Brooklyn,  NY 11208    718 434-4500   Fax: 718 434-3215
                                                 60-01 55th Drive, Maspeth, NY 11378    718 786-2050   Fax: 718 228-7297
                                                 800 3rd Ave., Brooklyn, NY 11232  929 337-1821
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