| Patents for F16B 23 - Specially-shaped heads of bolts or screws for rotations by a tool (3,038) |
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| 07/11/2001 | CN2438864Y Multipurpose screw |
| 07/03/2001 | US6253649 Screw with a recessed head and a driver bit engageable therewith |
| 06/28/2001 | DE4244989C2 Fastener driving tool assembly |
| 06/28/2001 | DE19960198A1 Locking screw device with distancing element and screw connecting lock for fixing an object includes a setscrew with a tool holder, predetermined breaking points and a distancing element in the tool holder. |
| 06/27/2001 | EP0759125B1 Device for protection against over-tightening of bolts, screws and the like |
| 06/27/2001 | CN2436710Y 螺钉 Screws |
| 06/20/2001 | EP1108900A1 Fluid operated tool for elongating and relaxing a threaded connector |
| 06/20/2001 | CN2435557Y Safety outdoor screw-thread fastening means |
| 06/19/2001 | US6247883 High strength blind bolt with uniform high clamp over an extended grip range |
| 06/13/2001 | DE19959601A1 Lightweight screw for releasable screw connection has screw shaft provided by outer and inner spiral wires coiled in opposite directions |
| 06/13/2001 | DE19955438A1 Safety screw head has stop faces for transmission of screw-in forces, and opposite faces run at angle abutment-free |
| 05/31/2001 | DE19957112A1 Fastening of self-tapping screws in blind holes of even brittle facade panels, is secured by capsule of adhesive introduced previously |
| 05/31/2001 | DE19957094A1 System for fixing anchor part on back of faade plate uses self-tapping screws screwed into predrilled blind holes in faade plate which are guided through guide and assembly bores formed |
| 05/29/2001 | US6237450 Fastener system with spline recess and driving tool |
| 05/22/2001 | US6234914 Punch for forming threaded fasteners with spiral drive |
| 05/02/2001 | CN1065329C 螺钉 Screws |
| 05/01/2001 | US6223634 Recessed head fastener and driver systems |
| 04/26/2001 | WO2000015966A8 Improved structure of a multi-angle nut and its driving or unscrewing tool |
| 04/24/2001 | US6220805 Slotted screw and method, and apparatus for forming a slot in a semi-product of a screw prior to thread formation |
| 04/19/2001 | WO2001027479A1 System comprising a screw and a tool therefor |
| 04/18/2001 | CN1291931A Screwdriver bit and its combination with screw |
| 04/12/2001 | WO2001025643A1 Anchoring screw |
| 04/05/2001 | DE19947311A1 Hollow screw or bolt for releasably fastening components together has head whose internal profile allows tool to be inserted to unscrew it and is produced from semi-finished sheet metal product or plastic |
| 03/22/2001 | DE19944217A1 Bolzenanker Wedge Anchor |
| 03/21/2001 | EP1085220A2 Anchor bolt |
| 03/14/2001 | CN1287034A Drive, fastening piece and forming tool |
| 03/13/2001 | US6199455 Driver, fastener and forming tool |
| 03/07/2001 | EP1080846A1 Screwdriver bit and its combination with screw |
| 02/20/2001 | US6189416 Stud bolt tool and method of using same |
| 02/13/2001 | US6186718 Threaded fastener having a head with a triangle centerpost within a triangle recess |
| 02/08/2001 | WO2001009527A1 Anti-theft device |
| 02/07/2001 | CN1283255A Spiral drive system for threaded fasteners |
| 02/01/2001 | WO2001007793A1 Tamper resistant fastener |
| 01/31/2001 | EP1071543A1 High torque wrenching system |
| 01/31/2001 | CN2417320Y 螺丝 Screw |
| 01/18/2001 | WO2001004501A1 Security screw |
| 01/18/2001 | WO2001004499A2 High strength blind bolt |
| 01/17/2001 | CN1280653A Combination of screw with driver bit or wrench |
| 01/17/2001 | CN1280652A Recessed head fastener and driver systems |
| 01/04/2001 | DE19923855A1 Sicherheitsschraube und zugehöriges Schraubwerkzeug Security screw and related Wrench |
| 12/28/2000 | DE10030744A1 Connecting bolt; has indication mark in bolt head and indication symbol at free end of bolt shaft, with planes through rotation axis and mark and symbol respectively at fixed angle |
| 12/26/2000 | US6164887 Screw for joining thin workpieces |
| 12/26/2000 | US6164171 Screwdriver used for screw tightener and screw suitably tightened by the screwdriver |
| 12/12/2000 | US6158832 Fastener with alignment and spacing features |
| 12/12/2000 | US6158310 Drive system having a strengthened drive system member for resisting torsional stresses |
| 12/06/2000 | CN2409372Y Regular polygon prism screw with cross slot |
| 11/30/2000 | WO2000071301A1 Tamper resistant screw and accompanying screwdriver |
| 11/30/2000 | WO1999062727A3 Fastener structure |
| 11/29/2000 | EP1055828A2 Drive system |
| 11/29/2000 | CN1275186A Improved structure of multi-angle nut and its driving or unscrewing tool |
| 11/29/2000 | CN1059022C Releasable coupling and tool therefor |
| 11/21/2000 | US6148699 Screwdriver and screw |
| 11/08/2000 | EP1007286A4 Screwdriver blade construction for a surgical screw |
| 11/08/2000 | CN2405063Y Screw and screw driver head therefor |
| 11/02/2000 | WO2000064638A1 Fastener system with spline recess and driving tool |
| 10/26/2000 | WO2000063062A1 Spare wheel retention bolt and head |
| 10/25/2000 | EP1046764A1 Device for distance fixing of isolation panels to walls or ceilings |
| 10/17/2000 | US6131493 Torque transmission member |
| 10/05/2000 | WO2000058056A1 Asymmetrical fastening system |
| 10/05/2000 | DE19914968A1 Screw has hexagonal or toothed head and hexagonal or toothed cavity in shaft |
| 10/04/2000 | CN2399548Y Improved screw |
| 09/27/2000 | EP1039151A1 Combination of screw with driver bit or wrench |
| 09/13/2000 | EP1035336A2 Driver, fastener and forming tool |
| 09/12/2000 | US6116834 Drywall screw |
| 09/06/2000 | EP1032767A2 High-torque resorbable screws |
| 08/31/2000 | DE19908154A1 Spannelement Clamping element |
| 08/30/2000 | EP1031742A1 Countersunk screw head |
| 08/30/2000 | EP1031741A1 Countersunk head screw |
| 08/30/2000 | EP1031740A1 Improved structure of a multi-angle nut and its driving or unscrewing tool |
| 08/30/2000 | EP1031739A2 Clamping element |
| 08/30/2000 | CN1264796A Countersunk screwnail |
| 08/30/2000 | CN1264795A Countersunk screwnail |
| 08/16/2000 | CN1263586A System for holding and tightening screws |
| 08/15/2000 | US6102642 Screw head |
| 08/09/2000 | EP1025370A1 Spiral drive system for threaded fasteners |
| 08/09/2000 | CN2391044Y Disassemble split bolt |
| 08/03/2000 | WO2000045057A1 High torque wrenching system |
| 08/03/2000 | DE19904053A1 Anchor bolt has threaded shank joined to screw head, transverse cavity and conical tapering part |
| 07/25/2000 | US6092968 Fastener structure |
| 07/19/2000 | EP1019641A1 Recessed head fastener and driver systems |
| 07/18/2000 | US6089396 Method and apparatus for a theft resistant fastener |
| 07/13/2000 | DE19910934C1 Metal bolt or nut has a polygon shape to take the torsion forces from a tool for locking/unlocking with edge breaks between the corners of the polygon to avoid separate removal of flash during prodn rolling or grinding |
| 07/04/2000 | US6081984 Method of fastening members of an assembly |
| 06/29/2000 | WO2000037811A1 Screw device and assembly for theft-proofing vehicle wheels, and a motor vehicle with such theft-proofing |
| 06/28/2000 | CN2385131Y Convenient screw thread connecting piece |
| 06/28/2000 | CN2385130Y Screw with hole |
| 06/28/2000 | CN1257971A Screw with slotted head, and screwdriver matched with same |
| 06/21/2000 | EP1010900A1 Screw with a recessed head and a driver bit engageable therewith |
| 06/20/2000 | US6077267 Absorbable bone screw and tool for its insertion |
| 06/14/2000 | EP1007858A1 Method and device for producing and checking screwed connections |
| 06/14/2000 | EP1007286A1 Screwdriver blade construction for a surgical screw |
| 06/13/2000 | US6074149 False threadscrew and screwstrip |
| 06/13/2000 | US6073965 Tilt holding force adjusting mechanism for steering column |
| 05/31/2000 | EP1004781A1 Combination between a wall anchor and a fixture |
| 05/24/2000 | EP1002962A1 Device for securing a fixing element |
| 05/24/2000 | CN1254401A 螺钉 Screws |
| 05/16/2000 | US6062787 Tamper resistant valve stem cap |
| 04/20/2000 | DE19926134A1 Verbindung von Schraubenzieher und Schraube Connection of screwdriver and screw |
| 04/19/2000 | CN1251157A 螺钉 Screws |
| 04/13/2000 | WO2000020766A1 Screw and screwdriver for a non-slip screw/screw driver pairing |