| 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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| 05/28/1992 | WO1992009817A1 Bone screw with improved threads |
| 05/28/1992 | CA2097052A1 Bone screw with improved threads |
| 05/13/1992 | EP0357700B1 Self-driving, self-tapping screw for screwing into porous concrete |
| 05/06/1992 | EP0483318A1 Self-locking tapping screw. |
| 05/05/1992 | US5110245 Thread forming screw |
| 04/28/1992 | USRE33901 Breakable composite drill screw |
| 04/15/1992 | EP0480103A1 Coating of screws |
| 04/15/1992 | CN2101793U Turret wood screw |
| 04/08/1992 | EP0479586A1 Masonry screw anchor |
| 04/07/1992 | US5102275 Deck plate and assembly |
| 03/25/1992 | EP0476831A1 Thread tapping screw |
| 03/25/1992 | EP0476466A1 Fastening device |
| 03/18/1992 | EP0475712A2 Thread-forming screw fastener |
| 03/17/1992 | US5096149 Twist type mounting device |
| 03/17/1992 | CA1297451C Screw strip with washers |
| 02/26/1992 | EP0472017A1 Cylindrical bodies with external thread |
| 02/18/1992 | US5088869 Thread rolling screw |
| 02/18/1992 | CA1295861C Anchor for masonry veneer walls |
| 02/05/1992 | EP0469290A1 Threaded insert for use on a drywall |
| 01/30/1992 | DE4031363A1 Drill bolt for simple power tool application - has take=up shaft with break-off recess giving secure bolt location under high thread bending force |
| 01/29/1992 | EP0468089A2 Drill screw having cutting edges each forming an arc curving to a head side |
| 01/28/1992 | US5083515 Method and apparatus for affixing applique armor panels to a surface without tools |
| 01/22/1992 | EP0466852A1 Self-drilling fastening. |
| 01/14/1992 | WO1992001165A1 Screw, nut, and thread rolling die |
| 01/14/1992 | CA2087174A1 Screw, nut and thread rolling die |
| 01/08/1992 | EP0464194A1 Screw for securing resilient materials to a support vulnerable to damage caused by the thread |
| 01/08/1992 | EP0464071A1 Self-tapping drill screw. |
| 01/02/1992 | EP0463278A1 Screw-type sleeve |
| 12/24/1991 | US5074729 Drill screw having cutting edges each forming an arc curving to a head side |
| 12/24/1991 | US5074728 Drill-coexistent screw |
| 11/28/1991 | WO1991018215A1 Self-locking tapping screw |
| 11/28/1991 | DE4016724A1 Thread forming screw with threaded part next to point - has thicker part next to screw head |
| 11/28/1991 | DE4015771A1 Thread-forming screw system - has adhesive coating over at least part of its thread, with non-round cross section |
| 11/12/1991 | US5064425 Anchoring member for anchorage in bone tissue |
| 11/12/1991 | US5064327 Oblique point fastener |
| 10/31/1991 | DE4015772C1 High torque transmission coupling - has injection moulded plastics section and threaded axial metal section |
| 10/29/1991 | US5061136 Masonry screw anchor |
| 10/29/1991 | US5061135 Thread tapping screw |
| 10/22/1991 | US5059077 Fixing element for low strength materials |
| 10/02/1991 | EP0448915A1 Construction method for an under-roof, under-roof built according to this method, and screw for the execution of the method |
| 09/25/1991 | EP0447902A1 Screw for fixing of gypsum plaster boards |
| 09/25/1991 | CN1014035B Tool, esp. for drawind of blind rivets provided with upsetting pins, but also for drilling and screw driving, as well as rivet and drill intended for use in the tool |
| 09/17/1991 | CA1288980C Tapping screw |
| 09/11/1991 | CN2084530U Wooden screw without thread on the tip |
| 09/10/1991 | US5046905 Winged drill screw |
| 09/03/1991 | US5044855 Thread-forming fasteners |
| 09/03/1991 | US5044853 Thread-cutting screw |
| 09/03/1991 | CA1288263C Tool, especially for drawing of blind rivets provided with upsetting pins, but also for drilling and screw driving, as well as a rivet and a drillintended for use in the tool |
| 08/13/1991 | US5039262 Self-drilling wall anchor |
| 08/08/1991 | WO1991011632A1 Screw for securing resilient materials to a support vulnerable to damage caused by the thread |
| 08/08/1991 | WO1991011630A1 Self-drilling fastening |
| 08/08/1991 | DE4003248A1 End cap for power cylinder - is retained by screws in tapped holes which are partly in end and partly in cylinder wall |
| 08/06/1991 | WO1991011631A1 Self-drilling fastening |
| 07/23/1991 | CA2008383A1 Breakable composite drill screw |
| 07/09/1991 | CA1285798C Groove point screw |
| 07/02/1991 | US5028190 Snap-in floating screw-anchor |
| 06/26/1991 | EP0433484A1 Thread forming screw |
| 06/26/1991 | CN2079679U Screw for tapping |
| 06/19/1991 | EP0432484A2 Fastening element |
| 05/30/1991 | WO1991007599A1 Fastening device |
| 05/28/1991 | US5019079 Bone screw |
| 05/23/1991 | DE4029134A1 Composite structure of timber beam and concrete slab - has concrete reinforcing bolts screwed into timber beam at acute angle to surface |
| 05/15/1991 | EP0427596A1 Thermal and acoustical insulation, in particular for ceilings of basements, garages or crawlspace and affixing method thereof |
| 05/14/1991 | US5015134 Tapping screw |
| 05/14/1991 | US5014390 Device for attaching a flexible covering element such as a piece of a carpeting or a mat to its support |
| 05/08/1991 | EP0425874A1 Self-threading screw for plastics and like materials, including soft metals, having a high tearing strenght and a very low threading torque |
| 05/02/1991 | EP0425358A1 Screwplug, especially for soft material, and tool for installing the same |
| 04/09/1991 | US5005699 Strapped fastener assemblage |
| 03/21/1991 | WO1991003609A1 Non-seating plate/fastener assembly |
| 03/20/1991 | CN2073507U Container screws for use on high intensity, climate fitting steel |
| 03/19/1991 | US5000639 Self-threading bolt |
| 02/27/1991 | EP0414335A1 Self-drilling wall anchor |
| 02/21/1991 | DE3926951A1 Clamping screw with alternate cutting and guiding threads - has some of cutting threada1s, near screw head, provided with projections around thread circumference |
| 01/24/1991 | DE3922684A1 Loch- und gewindeformende schraube Hole and self-tapping screw |
| 01/16/1991 | EP0407856A2 Countersunk head screw |
| 01/09/1991 | EP0407093A1 Winged drill screw |
| 12/13/1990 | WO1990015259A1 Improvement to flush head fastener |
| 12/05/1990 | EP0400535A2 Fastening element |
| 11/27/1990 | US4973210 Anchors for fixing to dense concrete, masonry and the like |
| 11/22/1990 | EP0398054A1 Detachable carrying device |
| 11/19/1990 | CA2016871A1 Carrier device |
| 11/07/1990 | EP0395929A1 Supporting bar for a carrying rail of a wall-or ceiling covering |
| 11/06/1990 | CA1275840C Drill screw |
| 10/31/1990 | EP0394719A1 Thread-forming screw |
| 10/31/1990 | EP0394604A2 Method and device for forming a thread in stone or concrete |
| 10/30/1990 | US4966024 Method of forming a screw threaded fastener |
| 10/24/1990 | EP0394086A1 Device for fastening a flexible lining element, like a floor carpet or a carpet, on its support |
| 10/16/1990 | US4963064 Fabric fastener |
| 10/16/1990 | CA1275188C Drill screw |
| 10/04/1990 | WO1990011458A1 Self-tapping drill screw |
| 10/02/1990 | US4959938 Non-seating plate/fastener assembly |
| 09/26/1990 | CN2062768U Jack screw and plug screw driver |
| 09/25/1990 | US4958972 Breakable composite drill screw |
| 09/25/1990 | CA1274410A1 Fastener |
| 09/06/1990 | DE3909725C1 Hole- and thread-forming screw |
| 08/14/1990 | US4948319 Screw/cap assemblies and their manufacture |
| 08/14/1990 | US4948312 Fastening element with guide member |
| 08/08/1990 | CN2060190U Solid boring chasing screw |
| 08/02/1990 | DE3926000C1 Self-tapping screw mfd. by cold rolling - has specified ratio between outer and core dia. and between outer dia. and pitch |
| 06/26/1990 | US4936395 Fastening device with a screw and a pulsating tool for universal fastenings |