Page 522 - Wurth Total Catalogue
P. 522

Wing pias countersunk head
                      ®

                                                                                 The self-drilling screw with up to 50%
                                                                                 time savings when fastening wood to
                                                                                 metal sub-structures.


                                                                                 •   Bimetal (stainless steel A2 drilling tip made of
                                                                                   case hardened steel).
                                                                                 •   R S ERT -coated (silver).
                                                                                         ®
        Nominal dia. d   in mm      3.9       4.8       5.5                      •   With tapping screw thread.
        Head dia. dk max.  in mm    7.        9.5       10.8                     •   Countersunk milling head for processing soft
        Drilling tip length lp  in mm  8      9         11                         woods.
        Drive                       AW20      AW25      AW25                     •            drive for optimum force transmission and
        Drilling range (steel)  in mm  1.5 - 2.4  2.0 - 4.0  2.0 - 5.0             care of the corrosion protection.

        Nominal  Length  Max. attachment length*  Art. No.         Pack Qty.
        dia. d  l       lB
        mm      mm      mm
        3.9     28      14                     0215 883 928
                38      24                     0215 883 938        500
                38      21                     0215 884 838
        4.8
                44      27                     0215 884 844
                55      35                     0215 885 555
        5.5     65      45                     0215 885 565        250
                90      7                      0215 885 590
       * Wood thickness l  and sub-structure thickness l  = max. attachment length l B
                                        U
                    H



                                                                                 Description of operation:
                                                                                 1.   Drilling out of the wood by the wing prevents
                                                                                   forced advancement of the screw.
                                                                                 2.   Drilling of the core hole in the sub-structure.
                                                                                   Breakage of the wing upon contact with the
                                                                                   metal.
                                                                                 3.   First few threads of the screw cut the thread,
                                                                                   into which the screw then turns.


                                                                                 Note:
                                                                                 Wing piasta  have to be approximately tested
                                                                                         ®
                                                                                 for usability before each application.  se only
                                                                                 application equipment with depth stop and claw
                                                                                 clutch.











     AUS. pub. 11/12  ©






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