| Patents for F16B 41 - Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts, or pins (4,973) |
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| 10/22/1991 | US5059076 Readjustment preventing structure for adjustment member |
| 10/22/1991 | US5059075 Retracting screw assembly |
| 10/15/1991 | US5056974 Lug nut retainer |
| 10/15/1991 | US5056208 Method for providing captive panel fastener assembly |
| 10/09/1991 | CN2086342U Screw nut sleeve lock |
| 10/03/1991 | WO1991014602A1 Internal combustion engine starting control to prevent unauthorized starting |
| 10/01/1991 | US5052203 Lock for truck trailers |
| 10/01/1991 | CA1289765C Device for locking brakes release valve |
| 10/01/1991 | CA1289734C Anti tamper shroud for cable connector |
| 08/28/1991 | CN2083653U Anti-stain sealed nut |
| 08/27/1991 | US5042880 Quick change wheel assembly |
| 08/27/1991 | US5042829 Screw holding device |
| 08/22/1991 | WO1991012438A1 Locking and unlocking arrangement for a screw or nut device, particularly a theft prevention screw or nut on a vehicle wheel |
| 08/14/1991 | CN2082791U Theft-proof fastener for guy |
| 08/14/1991 | CN2082788U Theft-poof screw |
| 08/08/1991 | WO1991011632A1 Screw for securing resilient materials to a support vulnerable to damage caused by the thread |
| 08/07/1991 | CN2082334U Locknut being able to guard against theft |
| 08/06/1991 | US5037260 Lock and hexagonal nut combination for mounting vehicle wheels |
| 08/01/1991 | DE4001818A1 Headed screw with no-loose bush - which is secured to free shank section for screw for screw head abutment |
| 07/30/1991 | CA1286898C Captive attachment device, and constituant part |
| 07/23/1991 | US5033909 Coupling for anchor rod and sleeve |
| 07/23/1991 | US5033280 Security lock |
| 07/02/1991 | US5027628 Lockable quick-release mechanism |
| 07/02/1991 | US5027627 Locking device for bolts and stud-nuts |
| 06/18/1991 | US5024073 Bezel lock, key and receiver assembly |
| 06/12/1991 | CN2078820U Nut-protecting sleeve |
| 06/05/1991 | CA2029365A1 Anti-theft device for automotive audio equipment |
| 06/04/1991 | US5020951 Fastener assembly |
| 05/29/1991 | EP0429063A1 Handle fixing structure for spinning reel |
| 05/28/1991 | US5018253 Pilfer-resistant display device |
| 05/21/1991 | US5017079 Laminated nut with one way installation |
| 05/15/1991 | EP0427237A1 Cap having anti-theft lock for fastening member |
| 05/08/1991 | EP0425515A1 Anti-theft device for spectacle frames. |
| 05/08/1991 | CA2029395A1 Cap having antitheft lock for fastening member |
| 04/30/1991 | US5010748 Stud or bolt locking device |
| 04/18/1991 | WO1991005173A1 A self-locking washer |
| 04/18/1991 | DE4027443A1 Securing nut with integrated washer - has groove in each member and plastics enclosure, holding them together |
| 04/16/1991 | US5007260 Bicycle locking system |
| 04/11/1991 | DE3932811A1 Screw head with screw spanner - has two circular or cylindrical recesses which are non concentric and eccentrically arranged in head |
| 03/19/1991 | US5000607 Device for fixing an object to a support, and object incorporating at least one such fixing device |
| 03/19/1991 | US5000067 Lock for trailer hitch |
| 03/06/1991 | CN2072617U Anti-stealing threaded bolt |
| 02/05/1991 | US4990101 Cover for circular electrical connectors |
| 01/23/1991 | EP0408605A1 Captive self-locking mechanism |
| 01/16/1991 | EP0407564A1 Safety device for a screw |
| 01/16/1991 | CN2069504U Anti-theft device for transformer |
| 01/15/1991 | US4984698 Lockable closure cap |
| 01/02/1991 | EP0405033A1 Engine clip bolt |
| 12/27/1990 | EP0404059A2 Fastening screw for assembly plates |
| 12/18/1990 | US4978266 Fastening element with expanding sleeve |
| 12/18/1990 | CA1277873C Security devices |
| 12/11/1990 | US4976576 Captive self-locking mechanism |
| 12/11/1990 | CA1277464C Mounting plate, in particular for hinges |
| 12/04/1990 | US4975008 Fastener assembly with sealing grommet |
| 12/04/1990 | US4975007 Captive fastener |
| 12/04/1990 | US4974274 Method of making an engine clip bolt |
| 11/29/1990 | WO1990014649A1 Anti-theft device for spectacle frames |
| 11/28/1990 | CN2066529U Lockbolt combined by ingineering plastic and metal |
| 11/22/1990 | EP0397773A1 Lockable closure cap |
| 11/20/1990 | US4971495 Lug nut retainer |
| 11/13/1990 | US4969788 Nut with pressure ring |
| 11/06/1990 | US4968202 Decorative and protective cap for locknut |
| 11/06/1990 | US4968012 Modular workpiece holding apparatus |
| 10/31/1990 | EP0395505A1 Fixing device for an object to be attached to any support, and object, particularly casing, having at least one of such fixing devices |
| 10/31/1990 | EP0394836A1 Mounting plate especially for members of ski bindings |
| 10/25/1990 | DE3912749A1 Preassembled hammer dowel with expanding sleeve - has screw nail held inserted by resilient tongues behind dowel head |
| 10/23/1990 | US4964773 Anti-theft apparatus including a screw with an anti-theft safety head |
| 10/16/1990 | US4963063 Captive panel fastener |
| 10/16/1990 | US4962651 Anti-theft device for automotive audio equipment |
| 10/03/1990 | EP0389783A1 Fastener assembly with sealing grommet |
| 10/02/1990 | US4960354 Headed fastener retainer clip |
| 09/30/1990 | CA2012440A1 Retracting screw assembly |
| 09/18/1990 | US4957317 Drum lock device |
| 09/13/1990 | DE3908000A1 Device for securing the connection of parts |
| 08/30/1990 | DE4003784A1 Fixing grid or grating - involves screw and retaining plate which cannot be inadvertently separated |
| 08/28/1990 | US4952107 Captive panel screw assembly |
| 08/16/1990 | DE3904450A1 Theft-proof attachment device for a wheel |
| 08/14/1990 | US4948316 Quick action fastener assembly |
| 08/09/1990 | WO1990008905A1 Safety device for a screw |
| 08/01/1990 | EP0379830A2 Fluid conduit coupling device |
| 07/24/1990 | US4942745 Locking security arrangement |
| 07/12/1990 | DE3900468A1 Device for the releasable fastening of two components |
| 07/10/1990 | US4940260 Fluid conduit coupling device |
| 07/03/1990 | US4938108 Theft-resistant fastener system |
| 07/03/1990 | CA1271064A1 Variable clamp fastener and method of using same for securing workpieces together |
| 06/27/1990 | EP0375593A1 Adjustable spacer |
| 06/27/1990 | EP0375475A1 Security device for assembling both parts of a tap body |
| 06/19/1990 | US4934888 Fastener retainer assembly |
| 06/13/1990 | DE3841809A1 Securing bolt for fork heads and the like |
| 05/31/1990 | DE3840417A1 Screw-fastening element |
| 05/30/1990 | EP0370212A1 Nut with a pressure ring |
| 05/29/1990 | US4929185 Printed circuit board assembly |
| 05/23/1990 | DE3839325A1 Clamping sleeve that can be mounted on a shaft, particularly a clamping sleeve of a steering gear |
| 05/15/1990 | US4925364 For maintaining a minimum normal displacement |
| 05/01/1990 | US4921382 Screw lock |
| 04/26/1990 | DE3840503A1 Fastening device, in particular for gratings |
| 04/24/1990 | US4919581 Loss-proof fastener and constituent part |
| 04/12/1990 | DE3834619A1 Device for the storage of transport-protection sleeves and screws on a washing machine |
| 04/10/1990 | US4915557 Captive screw assembly |
| 03/28/1990 | EP0360125A1 Screw with a theft protection head |