| Patents for F16B 25 - Screws that form threads in the body into which they are screwed, e.g. wood screws, self-tapping screws (3,519) |
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| 06/05/1990 | US4930630 Screw strip with washers |
| 05/30/1990 | EP0370674A1 Drill screw |
| 05/03/1990 | DE3933431A1 Roof tile, or facade panel fastener - has retaining hooks on spike driven into support structure |
| 04/17/1990 | US4917554 Screw unit to join semi-rigid mats together |
| 03/27/1990 | US4910992 Rivet installation tool and blind rivets for use therewith |
| 03/14/1990 | EP0358471A1 Screw/cap assemblies and their manufacture |
| 03/14/1990 | EP0357700A1 Self-driving, self-tapping screw for screwing into porous concrete. |
| 03/06/1990 | US4905923 Dispenser tube holder |
| 03/01/1990 | DE3828446A1 Method of manufacturing self-tapping screws having a drill point |
| 02/28/1990 | EP0356019A1 Anchors for fixing to dense concrete, masonry and the like |
| 02/20/1990 | US4901961 Carpet engaging support device |
| 02/13/1990 | US4900208 Polyetherimide shank |
| 02/13/1990 | US4900207 Self-drilling fastener |
| 01/30/1990 | US4897007 Steady push pin |
| 01/18/1990 | DE3823834A1 Screw, in particular wood screw, process for producing the screw and apparatus for carrying out the process |
| 01/10/1990 | CN2050899U Nail with convenient fixing function |
| 01/09/1990 | US4892429 Roof anchor and stress plate assembly |
| 12/27/1989 | CN2050105U High-strength taper self-tapping screw |
| 12/19/1989 | US4887951 Dual composite headed self-threading screw |
| 12/19/1989 | US4887385 Connecting means for frangible and/or friable articles |
| 12/05/1989 | US4884929 Flush head fastener |
| 11/07/1989 | US4878793 Screw threaded fastener |
| 11/07/1989 | US4878792 Removable mat fastener |
| 10/25/1989 | EP0338973A2 Fastener with guiding washer |
| 10/24/1989 | US4875641 Screw for inseparably joining cassette members |
| 10/17/1989 | US4874278 Wood screw with chip removing portion |
| 09/27/1989 | CN2045033U Straight-knock type wood screw |
| 09/05/1989 | US4863383 self-taping screw-in bone implant for dental purposes |
| 08/22/1989 | US4858601 Adjustable compression bone screw |
| 08/15/1989 | US4856953 Hook-driven screw with replaceable hook |
| 08/10/1989 | WO1989007207A1 Self-driving, self-tapping screw for screwing into porous concrete |
| 08/02/1989 | CN2042126U Dual-purpose hanger for bamboo screen and cotton curtain |
| 07/05/1989 | EP0322875A2 Clamping element and device for anchoring clamping elements |
| 07/04/1989 | US4844676 Self-penetrating screw |
| 06/27/1989 | US4842467 Concrete screw |
| 06/27/1989 | US4842437 Thread forming nut with locking portion |
| 06/14/1989 | EP0320186A1 Fastener strip assembly |
| 06/08/1989 | DE3740460A1 Self-drilling screw |
| 06/06/1989 | US4836730 Fastener |
| 05/30/1989 | US4834602 Tapping screw |
| 05/23/1989 | CA1254410A1 Fastening device for door or window frames |
| 05/10/1989 | CN2037409U Self-lock circle nail |
| 05/09/1989 | US4827756 Fastener fabrication method |
| 04/25/1989 | CA1253018A1 Wood screw |
| 04/11/1989 | US4820098 Screw |
| 04/04/1989 | US4818165 Threaded element for use as an insert |
| 03/28/1989 | US4816346 Screw fastener blank |
| 03/28/1989 | US4815909 Wood screw and method for making same |
| 03/21/1989 | CA1251348A1 Drill tip and fastener employing same |
| 03/15/1989 | EP0307119A1 Screw threaded fastener |
| 02/28/1989 | US4808051 Screw, particularly wood screw |
| 02/22/1989 | EP0303634A1 Fixing device and method for the manufacture of same |
| 02/21/1989 | CA1250165A1 Retainer for a fastener |
| 02/07/1989 | US4802807 Threaded fastener |
| 02/07/1989 | CA1249739A1 Fastener and nosepiece for installing lath |
| 01/31/1989 | US4801230 Retainer for a fastener |
| 01/24/1989 | CA1249141A1 Self-drilling screw and method and means for manufacturing same |
| 01/10/1989 | US4797022 Fastener and fabrication method therefor |
| 01/10/1989 | CA1248374A1 Wood screw |
| 12/27/1988 | US4793756 Tapping screw |
| 12/13/1988 | CA1246360A1 Fastening element for securing packing sheets |
| 12/08/1988 | DE3715420A1 Spacer screw |
| 11/30/1988 | EP0292742A1 Spacing screw |
| 11/30/1988 | EP0292734A1 Thread forming screw |
| 11/29/1988 | US4787792 Drill screw |
| 11/03/1988 | WO1988005991A3 Fixing device and method for the manufacture of same |
| 11/01/1988 | US4781506 Self-drilling screw |
| 11/01/1988 | US4781503 Fastener assembly for securing roofing on a soft insulation material to a solid base |
| 10/18/1988 | US4778319 Self-tapping screw |
| 10/05/1988 | EP0284894A1 Fastening device with a screw, and impact tool for universal fastenings |
| 10/04/1988 | CA1242601A1 Assymetrically shaped thread forming screw and method of making same |
| 10/04/1988 | CA1242599A1 Fastener |
| 09/27/1988 | US4773111 Selectively hardened self drilling fasteners and process for making the same |
| 09/21/1988 | EP0283185A1 Anchor for masonry veneer walls |
| 09/21/1988 | EP0282789A2 Self-tapping bone implant for dentistry |
| 09/14/1988 | CN87215279U Wooden screw convenient for use |
| 09/13/1988 | US4770560 Self-tapping connector |
| 09/07/1988 | EP0281203A1 Improved screw |
| 08/25/1988 | WO1988005991A2 Fixing device and method for the manufacture of same |
| 08/16/1988 | US4764069 Anchor for masonry veneer walls |
| 08/16/1988 | US4764066 Light gauge self-tapping sheet metal screw |
| 08/16/1988 | US4763456 Roof anchor and stress plate assembly |
| 08/10/1988 | EP0181390B1 Wood screw |
| 08/09/1988 | US4762453 Helical coil fastener |
| 08/02/1988 | CA1239815A1 Rotary fastener |
| 07/20/1988 | EP0274669A2 Connecting means for frangible and/or friable articles |
| 07/12/1988 | US4756653 Fastening element for securing packing sheets |
| 06/28/1988 | US4753562 Drill screw |
| 06/28/1988 | CA1238507A1 Drill screw with protective burrs |
| 06/07/1988 | US4749322 Aluminum roof panel fastener |
| 06/07/1988 | US4749319 Anti-stripping sheet metal screw |
| 06/02/1988 | WO1988003997A1 Fast tapping screw |
| 04/12/1988 | US4736481 Method of manufacturing screw fasteners |
| 03/15/1988 | US4730970 Selectively hardened self drilling fasteners |
| 03/15/1988 | US4730969 Self-drilling screw |
| 02/16/1988 | US4725175 Groove point screw |
| 02/09/1988 | CA1232416A1 Drill point milling machine and method |
| 02/04/1988 | DE3626172A1 Self-tapping threaded insert |
| 12/23/1987 | CN86209732U Easyly drivable wood screw |
| 12/22/1987 | US4713855 Process for making self-drilling fasteners |