Patents for F16B 41 - Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts, or pins (4,973)
04/1997
04/29/1997US5624216 Screw with a shearable head, and a tool for tightening such a screw
04/24/1997WO1997014893A1 Screw bolt
04/23/1997CN2252909Y Anti-theft nut
04/23/1997CN2252908Y Anti-theft bolt
04/16/1997CN2252271Y Anti-theft bolt for number plate on vehicle
04/16/1997CN2252270Y Anti-theft bolt and special spanner
04/16/1997CN2252269Y Anti-theft fixture
04/16/1997CN2252268Y Easy screwing and disassembly bolt
04/10/1997DE19640162A1 System for fixing workpiece with screw hole to wall
04/08/1997US5618145 Fastener module
04/02/1997EP0765265A1 Locking device for bicycles
03/1997
03/26/1997CN2250443Y Anti-theft device for bolt
03/20/1997DE19534034A1 Fastener device for components in motor industry
03/12/1997CN2249328Y Self-locking anti-theft bolt and magnetic unlocking tool
03/05/1997CN2248796Y Theft-proof screw nut and the spanner therefor
03/01/1997CA2157306A1 Locking device for a vehicle wheel
02/1997
02/18/1997US5603594 Fastener retention system
02/06/1997WO1997004242A1 Tamper resistant valve cap
01/1997
01/23/1997DE19526868A1 Securing element for multipart screw connections, etc.
01/15/1997EP0753675A1 Fastening device
01/02/1997EP0751305A1 Device for fastening an element of a windscreen wiper on a body of a motor vehicle
12/1996
12/25/1996CN2243568Y Disposable nut
12/04/1996EP0745192A1 Security lock for protecting nuts and bolts holding components together
12/04/1996CN2241792Y Anti-theft hub fasten bolt, nut and its wrench
11/1996
11/27/1996CN1136646A Screw with breakable head and driving tool
11/20/1996EP0742873A1 Mounting unit made of a mounting part, a fixing part and a sleeve as anti-loosening lock, and process for producing the mounting unit
11/13/1996CN2240069Y Bolt and nut protector
11/06/1996CN2239522Y Transform anti-theft lock
11/05/1996US5570982 Screw hole with preinstalled screw
11/05/1996US5570499 Bolt-tightened type coupling
10/1996
10/30/1996CN2238933Y External anti-remove nut with flange surface
10/24/1996WO1996033050A1 Method and apparatus for a theft resistant fastener
10/24/1996CA2218753A1 Method and apparatus for a theft resistant fastener
10/09/1996CN2237141Y Anti-theft bolt
09/1996
09/25/1996CN2236043Y Anti-falling device of screw bolt protector
09/24/1996US5558480 Bolt for truss, wherein the bolt has shaft portions separated by a groove and a stopper having protrusions engaged in the groove
09/04/1996CN2234545Y Theft-proof clamp
09/04/1996CN2234524Y One-way self-locking screw
08/1996
08/21/1996CN2233484Y Theft-proof conical fastener and its special sleeve
08/21/1996CN2233483Y Theft-proof nut
08/08/1996WO1996023593A1 Method and apparatus for making retaining elements
08/08/1996DE19510349A1 Shell coupling element with cylindrical fastener with head of increased dia.
08/08/1996CA2212029A1 Method and apparatus for making retaining elements
08/07/1996EP0725223A1 Tightening knob
08/06/1996US5542722 Tamper resistant meter locking ring
07/1996
07/24/1996EP0723086A1 Screw with a separable head and screwing tool for such a screw
07/17/1996CN2231341Y Self-locking anti-theft nut
06/1996
06/19/1996EP0716939A1 Hub unit with connection by means of cup spring
06/19/1996CN2229572Y Antitheft screw bolt with V shape groove
06/13/1996DE19543721A1 Securing device for shut=off valves
06/11/1996US5525267 Tamper resistant limit cap
05/1996
05/21/1996US5518768 Method and apparatus for making retaining elements
05/21/1996CA2092883C Tamper resistant device for the application of preselected torque to screws and the like
05/15/1996CN2227226Y Advancing crankshaft
05/08/1996CN2226671Y Theft-proof block nut fastening piece
04/1996
04/30/1996US5511301 Self retaining fastener
04/10/1996CN2224308Y Anti-theft screw
03/1996
03/27/1996EP0703372A1 Device for the handling and positioning of screws
03/21/1996DE4441636A1 Self-securing, lockable screw, nut, or rotary closure
03/20/1996CN2222827Y Theft self-locking bolt
03/13/1996CN1118565A Electrical apparatus having a screw terminal
03/06/1996CN2221679Y Rust and corrosion preventing inner hexagonal screw
02/1996
02/21/1996CN2220558Y Automatic locking anti-theft bolt, nut
02/20/1996US5491992 King pin locking mechanism
02/14/1996CN1116873A Clutch module with integrated securing screws
02/06/1996US5489177 Fastener assembly with axially captivated washer
02/01/1996DE19523932A1 Metal component preventing screw loss
01/1996
01/31/1996CN2218849Y Anti-theft screw stopper
01/11/1996WO1996000678A1 Locking device for bicycles
01/04/1996DE4426663A1 Nut with key for attachment to wheel axle or saddle pillar
01/02/1996US5479799 Key and bolt lock device
12/1995
12/27/1995CN2216168Y Wedge theftproof check bolt
12/20/1995EP0688063A1 Electrical apparatus with clamping screw
12/20/1995CN2215624Y Screw-pitch changeable self-locking dismount-proof screw bolt pair
12/20/1995CN2215623Y Theft-proof device for fasteners
12/20/1995CN2215622Y 防盗螺母 Anti-theft nut
12/07/1995DE4445604A1 Panel clamp with screw fastening to wall
12/06/1995CN2214556Y Anti-theft bolt and nut
11/1995
11/29/1995CN2213882Y Dismountable anti-theft bolt
11/29/1995CN2213881Y Anti-loose anti-theft bolt and nut with tally pin
11/28/1995US5469726 Nut locking apparatus
11/21/1995US5468103 Locking system with an identification mark for threaded fasteners
11/09/1995DE4415883A1 One=piece retainer for holding screw in position in component for later tightening
11/08/1995CN2212104Y Anti-theft screw in eight diagrams shape
11/07/1995US5464297 Fitting, particularly fitting for connecting plates
11/01/1995CN2211513Y Waterproof cushion
11/01/1995CN1111008A Bolt-tightened type coupling
10/1995
10/31/1995US5462395 Sound decoupling connecting element
10/25/1995CN2210968Y Anti-theft nut for wheel of motor vehicle
10/25/1995CN2210967Y Demounting-proof bolt
10/24/1995US5460351 Valve stem locking assembly
10/18/1995EP0677152A1 Clutch module with integrated securing screws
10/18/1995CN2210278Y Bolt-couple against loss
10/11/1995CN2209733Y Anti-theft adjustable screw bolt
10/11/1995CN2209732Y Anti-theft screw nut and fastening wrench
09/1995
09/12/1995US5449260 Tamper-evident bolt
08/1995
08/24/1995WO1995022699A1 Security lock for protecting nuts and bolts holding components together
08/17/1995DE4404942A1 Method of securing screw connection
08/10/1995WO1995021335A1 Mounting unit made of a mounting part, a fixing part and a sleeve as anti-loosening lock, and process for producing the mounting unit
08/09/1995EP0666429A1 Retaining device for a screw on a moulded part
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