AU7493696A - Screw and method of producing the same - Google Patents
Screw and method of producing the sameInfo
- Publication number
- AU7493696A AU7493696A AU74936/96A AU7493696A AU7493696A AU 7493696 A AU7493696 A AU 7493696A AU 74936/96 A AU74936/96 A AU 74936/96A AU 7493696 A AU7493696 A AU 7493696A AU 7493696 A AU7493696 A AU 7493696A
- Authority
- AU
- Australia
- Prior art keywords
- screw
- shank
- steel
- producing
- section
- 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.)
- Abandoned
Links
- 229910001240 Maraging steel Inorganic materials 0.000 abstract 3
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
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
- 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
- F16B35/041—Specially-shaped shafts
Abstract
The invention concerns a rustproof screw with a hard tip (5), a head (2) of austenitic steel and a shank (3) which in at least one section including the screw tip (5) consists of maraging steel, maraging steel having greater hardness than austenitic steel. The invention further concerns a method of producing such a screw comprising the following steps: a first shank section (3) is produced from austenitic steel with a head (2); a second shank section (5) is produced from maraging steel; the two shank sections are welded; and a thread is formed on the screw shank. The second shank section (5) is case-hardened.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19540848A DE19540848A1 (en) | 1995-10-30 | 1995-10-30 | Screw and process for its manufacture |
DE19540848 | 1995-10-30 | ||
PCT/EP1996/004668 WO1997016652A1 (en) | 1995-10-30 | 1996-10-25 | Screw and method of producing the same |
Publications (1)
Publication Number | Publication Date |
---|---|
AU7493696A true AU7493696A (en) | 1997-05-22 |
Family
ID=7776449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU74936/96A Abandoned AU7493696A (en) | 1995-10-30 | 1996-10-25 | Screw and method of producing the same |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0861379B1 (en) |
AT (1) | ATE181760T1 (en) |
AU (1) | AU7493696A (en) |
DE (2) | DE19540848A1 (en) |
WO (1) | WO1997016652A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29706372U1 (en) * | 1997-04-10 | 1997-10-30 | Biller Rudi | Hard stainless steel self-drilling screw |
US6338600B2 (en) | 1999-11-15 | 2002-01-15 | Ejot Verbindungstechnik Gmbh & Co. Kg | Self-tapping, corrosion-resistant screw with hardened tip |
DE10033471C1 (en) * | 2000-07-10 | 2001-12-06 | Sfs Ind Holding Ag Heerbrugg | Self-boring screw made from stainless steel used in the building industry has a shaft made from two sections of stainless steel connected together |
DE102004053803B4 (en) * | 2004-11-08 | 2006-10-26 | Hilti Ag | Thread-forming screw |
DE102007014407A1 (en) | 2007-03-26 | 2008-10-02 | Ejot Baubefestigungen Gmbh | Self-tapping screw with a corrosion-resistant steel shaft and a hard tip attached to it |
DE102008016866B4 (en) | 2008-04-02 | 2011-04-28 | Ludwig Hettich & Co. | Threaded furrowing screw |
DE102009039337B4 (en) | 2009-08-29 | 2020-11-26 | Dieterle GbR (vertretungsberechtigter Gesellschafter:Frank Dieterle, Tannenstraße 34, 77761 Schiltach) | Concrete structure |
DE102013108018A1 (en) | 2013-07-26 | 2015-01-29 | Fischerwerke Gmbh & Co. Kg | Fastening element and method for producing a fastener |
DE102013108032A1 (en) | 2013-07-26 | 2015-01-29 | Fischerwerke Gmbh & Co. Kg | Concrete screw and method for its production |
US20170014952A1 (en) | 2014-06-17 | 2017-01-19 | United Technologies Corporation | Systems and methods for dissimilar material welding |
DE102016114180A1 (en) * | 2016-05-12 | 2017-11-16 | Fischerwerke Gmbh & Co. Kg | Self-tapping concrete screw |
DE102017101931B4 (en) * | 2017-02-01 | 2022-05-05 | Kamax Holding Gmbh & Co. Kg | High strength screw with a softened threaded end |
EP3536812A1 (en) * | 2018-03-08 | 2019-09-11 | HILTI Aktiengesellschaft | Bi-metal screw with martensitic hardenable steel |
DE102020107194A1 (en) | 2020-03-16 | 2021-09-16 | Ejot Gmbh & Co. Kg | Method of making a screw and screw |
DE102022123111A1 (en) * | 2022-09-12 | 2024-03-14 | Fischerwerke Gmbh & Co. Kg | Method for producing a bimetal screw, base body of a bimetal screw, and bimetal screw |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3924508A (en) * | 1974-09-27 | 1975-12-09 | Textron Inc | Composite drill screw |
DE2549147C2 (en) * | 1975-11-03 | 1985-01-17 | Itw-Ateco Gmbh, 2000 Norderstedt | Drilling screw |
DE2555647A1 (en) * | 1975-12-11 | 1977-06-16 | Jaeger Eberhard Gmbh | Self tapping screw for use in hand drill - is fitted with integral drill bit to pierce both components to be joined |
US4233880A (en) * | 1978-07-20 | 1980-11-18 | Illinois Tool Works Inc. | Stainless steel drill screw |
US4295351A (en) * | 1979-01-08 | 1981-10-20 | Illinois Tool Works Inc. | Self-tapping stainless steel screw and method for producing same |
AU1152588A (en) * | 1987-02-18 | 1988-09-14 | Sfs Stadler Ag | Fixing device and method for the manufacture of same |
US4736481A (en) * | 1987-05-22 | 1988-04-12 | Construction Fasteners, Inc. | Method of manufacturing screw fasteners |
JPH04277309A (en) * | 1991-03-01 | 1992-10-02 | Kokubu Kagaku Kogyo Kk | Drilling screw and manufacture of the same |
ES2067872T3 (en) * | 1991-07-18 | 1995-04-01 | Daido Oxygen | A HARD AUSTENITIC STAINLESS STEEL SCREW. |
US5205466A (en) * | 1992-07-15 | 1993-04-27 | Chieh-Chang Tzeng | Manufacturing method of austenitic stainless steel self-tapping and self-drilling screw |
DE59300099D1 (en) * | 1993-05-04 | 1995-04-06 | Hettich Ludwig Schraubenfab | Thread forming screw. |
EP0625400A1 (en) * | 1993-05-04 | 1994-11-23 | LUDWIG HETTICH SCHRAUBENFABRIK GmbH & Co. | Tool for the formation of an internal thread |
SE508684C2 (en) * | 1993-10-07 | 1998-10-26 | Sandvik Ab | Precision-hardened iron alloy with quasi-crystalline structure particles |
-
1995
- 1995-10-30 DE DE19540848A patent/DE19540848A1/en not_active Ceased
-
1996
- 1996-10-25 DE DE59602346T patent/DE59602346D1/en not_active Expired - Lifetime
- 1996-10-25 WO PCT/EP1996/004668 patent/WO1997016652A1/en active IP Right Grant
- 1996-10-25 AU AU74936/96A patent/AU7493696A/en not_active Abandoned
- 1996-10-25 AT AT96937254T patent/ATE181760T1/en not_active IP Right Cessation
- 1996-10-25 EP EP96937254A patent/EP0861379B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0861379A1 (en) | 1998-09-02 |
ATE181760T1 (en) | 1999-07-15 |
DE19540848A1 (en) | 1997-05-28 |
WO1997016652A1 (en) | 1997-05-09 |
DE59602346D1 (en) | 1999-08-05 |
EP0861379B1 (en) | 1999-06-30 |
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