DE102006002532A1 - Self-tapping screw, for fastening sheets of material to sub-structure, has self-tapping thread at its point, above which is section of shaft which has no thread and then section with normal screw thread - Google Patents
Self-tapping screw, for fastening sheets of material to sub-structure, has self-tapping thread at its point, above which is section of shaft which has no thread and then section with normal screw thread Download PDFInfo
- Publication number
- DE102006002532A1 DE102006002532A1 DE200610002532 DE102006002532A DE102006002532A1 DE 102006002532 A1 DE102006002532 A1 DE 102006002532A1 DE 200610002532 DE200610002532 DE 200610002532 DE 102006002532 A DE102006002532 A DE 102006002532A DE 102006002532 A1 DE102006002532 A1 DE 102006002532A1
- Authority
- DE
- Germany
- Prior art keywords
- screw
- thread
- head
- plate
- self
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 title description 4
- 238000005553 drilling Methods 0.000 claims description 10
- 238000003801 milling Methods 0.000 claims description 3
- 230000013011 mating Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
- F16B25/106—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a self-piercing screw-point, i.e. without removing material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
- F16B25/0031—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the screw being designed to be screwed into different materials, e.g. a layered structure or through metallic and wooden parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
- F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
- F16B25/0057—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
- F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
- F16B25/0057—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections
- F16B25/0063—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections with a non-threaded portion on the shaft of the screw
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
- F16B35/065—Specially-shaped heads with self-countersink-cutting means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
- F16B5/0275—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread the screw-threaded element having at least two axially separated threaded portions
Abstract
Description
Die Erfindung betrifft eine selbstbohrende Schraube, die insbesondere dazu geeignet sein soll, ein beispielsweise als Platte ausgebildetes Element an einer Unterkonstruktion in einem Vorgang zu befestigen. Die Schraube muss also in der Platte und in der Unterkonstruktion ein Loch herstellen und sich dann ein Gewinde formen. Beim Herstellen des Lochs durch eine Bohrspitze oder Schneidspitze wird der Vorschub der Schraube durch den Widerstand des Materials und die Kraft bestimmt, mit der der Benutzer die Schraube andrückt. Dieser Vorschub ist deutlich geringer als es der Steigung des Gewindes der Schraube entspricht.The The invention relates to a self-tapping screw, in particular to be suitable, for example, designed as a plate To attach element to a substructure in one operation. The screw must therefore be in the plate and in the substructure make a hole and then form a thread. When manufacturing the hole through a drill bit or cutting tip is the feed the screw is determined by the resistance of the material and the force with which the user presses the screw. This feed is clear less than the pitch of the thread of the screw corresponds.
Beim Befestigen von Holzplatten auf metallischen Unterkonstruktionen, beispielsweise im Containerbau, ist es bekannt, so genannte Flügelschrauben zu verwenden. Diese haben eine für Metall geeignete Schneidspitze, an die sich vor dem Gewindeschaft zwei seitliche Flügel anschließen. Dadurch wird in der Holzplatte ein Loch gebohrt, das größer ist als der Außendurchmesser des Gewindes der Schraube. Das Gewinde der Schraube steht daher mit der Holzplatte nicht in Verbindung. Sobald die Schneidspitze durch die Unterkonstruktion hindurch gelangt ist, brechen die seitlichen Flügel ab. Dann bildet sich das Ge winde der Schraube ein Gegengewinde in der Unterkonstruktion. Die Befestigung zwischen der Holzplatte und der Unterkonstruktion geschieht durch das Anziehen des Schraubenkopfs, so dass eine Verspannung zwischen der Holzplatte und der Unterkonstruktion auftritt.At the Fixing wooden boards on metallic substructures, For example, in container construction, it is known, so-called thumbscrews to use. These have one for Metal suitable cutting tip, to which in front of the threaded shaft two side wings connect. This drills a hole in the wood panel that is larger than the outside diameter the thread of the screw. The thread of the screw is therefore with the wooden plate is not connected. Once the cutting tip through the substructure has passed through, break the lateral wing from. Then the Ge thread of the screw forms a counter thread in the substructure. The attachment between the wooden plate and the substructure is done by tightening the screw head, allowing a tension between the wood panel and the substructure occurs.
Eine solche Lösung ist dann nicht möglich, wenn die zu befestigende Platte eine Zusammensetzung oder Struktur aufweist, die ein Verspannen unmöglich oder nicht sinnvoll macht. Ein Beispiel für eine derartige Platte ist eine Zementplatte, die im Trockenbau an eine metallische Unterkonstruktion angeschraubt werden soll.A such solution is not possible then the plate to be fastened has a composition or structure, which makes it impossible to brace or does not make sense. An example of such a plate is a cement board used in dry construction to a metallic substructure should be screwed.
Der Erfindung liegt die Aufgabe zu Grunde, eine einfach aufgebaute und kostengünstig herzustellende selbstbohrende Schraube zu schaffen, die es ermöglicht, ein Element an einer Unterkonstruktion spannungsfrei zu befestigen.Of the Invention is based on the object, a simply constructed and economical to create a self-drilling screw that makes it possible to secure an element to a substructure stress-free.
Zur Lösung dieser Aufgabe schlägt die Erfindung eine selbstbohrende Schraube mit den im Anspruch 1 genannten Merkmalen vor. Die Erfindung schlägt ebenfalls eine Verwendung einer solchen Schraube mit den im Anspruch 14 genannten Merkmalen vor. Weiterbildungen der Erfindung sind Gegenstand von Unteransprüchen.to solution this task strikes the invention is a self-tapping screw with the in claim 1 mentioned features. The invention also proposes a use such a screw with the features mentioned in claim 14 in front. Further developments of the invention are the subject of dependent claims.
Durch die selbstbohrende Schraubenspitze wird zunächst in dem zu befestigenden plattenförmigen Element ein Loch gebohrt. Während des Bohrens dieses Lochs durch die gesamte Platte hindurch erfolgt kein Zwangsvorschub, da sich an die Bohrspitze der gewindefreie Abschnitt anschließt. Erst dann, wenn die selbstbohrende Schraubenspitze die Unterkonstruktion erreicht und durchbohrt hat, kommt jetzt das Gewinde der Schraube zum Tragen. Es gelangt dann beispielsweise in Eingriff mit der Unterkonstruktion und formt sich dort sein Gegengewinde.By the self-drilling screw tip is first in the to be fastened disc-shaped Element drilled a hole. While drilling this hole through the entire plate No forced feed, since the drill bit of the thread-free Section connects. Only then, when the self-drilling screw tip the substructure reached and pierced, now comes the thread of the screw to carry. It then gets into engagement, for example, with the substructure and forms its counter thread there.
Je nach Art der Unterkonstruktion und dem zu befestigenden Element kann vorgesehen sein, dass die Schraubenspitze ein eigenes Gewinde aufweist, also als Bohrspitze ausgebildet ist. Dies ist in erster Linie für den Fall gedacht, dass auch die Unterkonstruktion aus Holz besteht.ever on the type of substructure and the element to be fastened can be provided that the screw tip has its own thread has, that is designed as a drill tip. This is first Line for thought the case that the substructure is made of wood.
Falls die Unterkonstruktion dagegen aus Metall steht, oder auch aus sehr hartem Holz, kann die Schraubenspitze einen Schneidkopf aufweisen, wie dies bei für Metall gedachten Schrauben schon bekannt ist. Dieser Schneidkopf kann einstückig an dem Schaft angeformt sein.If the substructure, on the other hand, is made of metal, or else very much hard wood, the screw tip may have a cutting head, like this at for Metal imaginary screws already known. This cutting head can be one piece be molded on the shaft.
In nochmaliger Weiterbildung der Erfindung kann vorgesehen sein, dass das Gewinde des Schraubenschafts an der Unterseite des Schraubenkopfs beginnt.In Further development of the invention can be provided that the thread of the screw shaft at the bottom of the screw head starts.
Als Schraubenkopf kommt in erster Linie ein Senkkopf in Frage, der insbesondere eine ebene Stirnfläche aufweist. Dieser Senkkopf kann so in das Material der Platte versenkt werden, dass seine Stirnfläche bündig mit der Oberfläche der Platte verläuft.When Screw head is primarily a countersunk in question, in particular a flat face having. This countersunk head can be sunk into the material of the plate be that his face flush with the surface the plate runs.
Je nach Anwendungsfall kann vorgesehen sein, dass die Unterseite des Senkkopfs entweder als Konus ausgebildet ist, oder aber eine geschwungene abgerundete Kontur aufweist.ever After use, it can be provided that the bottom of the Countersunk head is designed either as a cone, or a curved rounded Has contour.
Bei der Verwendung von Gipskartonplatten kann insbesondere ein Schraubenkopf sinnvoll sein, der mit Abstand von seiner Stirnfläche eine Schulterfläche aufweist, deren Durchmesser kleiner als der Außendurchmesser des Schraubenkopfs an seiner größten Stelle ist. Diese Schulterfläche, die insbesondere eben ausgebildet ist und quer zur Längsachse der Schraube verläuft, kann dazu dienen, die Ränder des gebildeten Lochs in dem die Oberfläche bildenden Karton in die Platte hinein zu ziehen und dort festzuhalten.at the use of plasterboard can in particular a screw head be meaningful, the distance from its face a shoulder surface whose diameter is smaller than the outer diameter of the screw head in its largest place is. This shoulder surface, which is particularly flat and transverse to the longitudinal axis the screw runs, can serve the edges the formed hole in the surface forming cardboard in the Pull the plate into it and hold it there.
In nochmaliger Weiterbildung kann diese Schulterfläche einen scharfkantigen Rand aufweisen, der dazu dienen kann, ein genau definiertes Loch in dem Karton zu bilden.In repeated training, this shoulder surface can be a sharp edge which may serve to define a well-defined hole in the To form cardboard.
Das auf dem Schaft der Schraube ausgebildete, insbesondere gewalzte, Gewinde weist vorzugsweise nach einem weiteren Merkmal der Erfindung einen konstanten Außendurchmesser auf. Es handelt sich also nicht um ein stufenförmiges Gewinde.The thread formed on the shank of the screw, in particular rolled, preferably has, according to a further feature of the invention, a constant outer diameter. It So is not a stepped thread.
Vorzugsweise ist die Bohrspitze bzw. der Schneidkopf der Schraube derart ausgebildet, dass das erzeugte Loch einen etwas größeren Durchmesser aufweist als der Schaftdurchmesser des gewindefreien Abschnitts, oder aber den gleichen Durchmesser.Preferably the drill bit or the cutting head of the screw is designed such that the hole produced has a slightly larger diameter as the shank diameter of the unthreaded section, or the same diameter.
Insbesondere kann vorgesehen sein, dass das erzeugte Loch kleiner als der Außendurchmesser des Gewindes der Schraube ist.Especially can be provided that the generated hole is smaller than the outer diameter the thread of the screw is.
Vorzugsweise ist der Durchmesser des Schafts der Schraube in dem gewindefreien Abschnitt kleiner als der Außendurchmesser des Gewindes der Schraube.Preferably is the diameter of the shaft of the screw in the thread-free Section smaller than the outer diameter the thread of the screw.
Die Erfindung schlägt vor, eine solche Schraube zur Befestigung einer Platte oder einer sonstigen Elements an einer Unterkonstruktion zu verwenden. Dabei wird so vorgegangen, dass die Platte provisorisch angeordnet wird und die Schraube durch die Platte hindurch ohne vorzubohren in die Unterkonstruktion eingeschraubt wird. Dabei wird eine Schraube verwendet, bei der der gewindefreie Abschnitt eine Länge aufweist, die mindestens so groß ist wie die Dicke der zu befestigenden Platte.The Invention proposes before, such a screw for fixing a plate or other To use elements on a substructure. It will do so proceeded that the plate is arranged temporarily and the Screw through the plate without pre-drilling into the substructure is screwed in. In this case, a screw is used in the the unthreaded section has a length that is at least so big as the thickness of the plate to be fastened.
Andererseits ist die Länge des Gewindes der Schraube größer als die Dicke der Platte, vorzugsweise mindestens so groß wie die Summe aus der Dicke der Platte und der Dicke der Unterkonstruktion.on the other hand is the length the thread of the screw is larger than the thickness of the plate, preferably at least as large as the Sum of the thickness of the plate and the thickness of the substructure.
Die Verwendung dieser Schraube führt dazu, dass nach dem vollständigen Einschrauben über die gesamte Länge des Lochs in der Platte eine Verbindung zwischen dem Schraubengewinde und dem Gegengewinde in der Wand des Lochs vorhanden ist, und dass eine Verbindung zwischen dem Gewinde und den in dem Loch in der Unterkonstruktion gebildeten Gegengewinde vorhanden ist. Damit ist eine über eine große Fläche vorhandene Verbindung gegeben, ohne dass eine Verspannung des plattenförmigen Elements auftritt.The Use of this screw leads to that after the full Screw in over the entire length the hole in the plate a connection between the screw thread and the mating thread is present in the wall of the hole, and that a connection between the thread and the hole in the Substructure formed counter thread exists. This is one over a big area given existing connection, without causing a tension of the plate-shaped element occurs.
Natürlich kann die Schraube auch zur Befestigung von Elementen dienen, die eine Verspannung durchaus zulassen.Of course you can The screw also serve to fasten elements that have a Absolutely allow tension.
Weitere Merkmale, Einzelheiten und Vorzüge der Erfindung ergeben sich aus den Ansprüchen und der Zusammenfassung, deren beider Wortlaut durch Bezugnahme zum Inhalt der Beschreibung gemacht wird, der folgenden Beschreibung einer bevorzugten Ausführungsform der Erfindung sowie anhand der Zeichnung. Hierbei zeigen:Further Features, Details and Benefits The invention results from the claims and abstract, their wording by reference to the content of the description is made, the following description of a preferred embodiment the invention and with reference to the drawing. Hereby show:
Auf
den Schraubenschaft ist in dem Bereich unterhalb der Schraubenkopfs
Die
Schraubenspitze
Bei
dem Gewinde handelt es sich, wie man dem oberen Teil der
Der
Schraubenkopf
Während bei
der in
Anhand
der
Die
Platte
Bei
dieser Verwendung ist es sinnvoll, eine Schraube zu verwenden, deren
gewindefreier Abschnitt
Die
Länge des
Gewindes
Claims (17)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610002532 DE102006002532A1 (en) | 2006-01-11 | 2006-01-11 | Self-tapping screw, for fastening sheets of material to sub-structure, has self-tapping thread at its point, above which is section of shaft which has no thread and then section with normal screw thread |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610002532 DE102006002532A1 (en) | 2006-01-11 | 2006-01-11 | Self-tapping screw, for fastening sheets of material to sub-structure, has self-tapping thread at its point, above which is section of shaft which has no thread and then section with normal screw thread |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006002532A1 true DE102006002532A1 (en) | 2007-07-12 |
Family
ID=38170027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200610002532 Withdrawn DE102006002532A1 (en) | 2006-01-11 | 2006-01-11 | Self-tapping screw, for fastening sheets of material to sub-structure, has self-tapping thread at its point, above which is section of shaft which has no thread and then section with normal screw thread |
Country Status (1)
Country | Link |
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DE (1) | DE102006002532A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015131914A1 (en) * | 2014-03-04 | 2015-09-11 | Knauf Gips Kg | Screw for mounting dry-walls |
CN105889268A (en) * | 2016-03-10 | 2016-08-24 | 天津市福厚盈科技有限公司 | Manufacturing method for novel screw |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2324675C2 (en) * | 1972-08-11 | 1983-02-10 | Richter, Reinhold, Dipl.-Ing., 6100 Darmstadt | Screw for fastening plasterboard coated with paper on both sides to a thin-walled, metal supporting structure |
EP0504782A1 (en) * | 1991-03-18 | 1992-09-23 | Adolf Würth GmbH & Co. KG | Screw, method and rolling die for manufacturing the same |
EP0516431A1 (en) * | 1991-05-29 | 1992-12-02 | Topura Co., Ltd | Drilling screw |
DE19849074A1 (en) * | 1998-10-24 | 2000-04-27 | Wuerth Adolf Gmbh & Co Kg | Countersunk fastening screw for concrete fiber or plasterboard panel can be inserted accurately without slipping away during insertion process |
-
2006
- 2006-01-11 DE DE200610002532 patent/DE102006002532A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2324675C2 (en) * | 1972-08-11 | 1983-02-10 | Richter, Reinhold, Dipl.-Ing., 6100 Darmstadt | Screw for fastening plasterboard coated with paper on both sides to a thin-walled, metal supporting structure |
EP0504782A1 (en) * | 1991-03-18 | 1992-09-23 | Adolf Würth GmbH & Co. KG | Screw, method and rolling die for manufacturing the same |
EP0516431A1 (en) * | 1991-05-29 | 1992-12-02 | Topura Co., Ltd | Drilling screw |
DE19849074A1 (en) * | 1998-10-24 | 2000-04-27 | Wuerth Adolf Gmbh & Co Kg | Countersunk fastening screw for concrete fiber or plasterboard panel can be inserted accurately without slipping away during insertion process |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015131914A1 (en) * | 2014-03-04 | 2015-09-11 | Knauf Gips Kg | Screw for mounting dry-walls |
CN105889268A (en) * | 2016-03-10 | 2016-08-24 | 天津市福厚盈科技有限公司 | Manufacturing method for novel screw |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |