GB2235744B - Self-tapping fastener - Google Patents

Self-tapping fastener

Info

Publication number
GB2235744B
GB2235744B GB9018840A GB9018840A GB2235744B GB 2235744 B GB2235744 B GB 2235744B GB 9018840 A GB9018840 A GB 9018840A GB 9018840 A GB9018840 A GB 9018840A GB 2235744 B GB2235744 B GB 2235744B
Authority
GB
United Kingdom
Prior art keywords
self
tapping fastener
tapping
fastener
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.)
Expired - Fee Related
Application number
GB9018840A
Other versions
GB9018840D0 (en
GB2235744A (en
Inventor
Itw-Ateco Gmbh
Rainer Isenberg
Knut Jansen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ITW Ateco GmbH
Original Assignee
ITW Ateco GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ITW Ateco GmbH filed Critical ITW Ateco GmbH
Publication of GB9018840D0 publication Critical patent/GB9018840D0/en
Publication of GB2235744A publication Critical patent/GB2235744A/en
Application granted granted Critical
Publication of GB2235744B publication Critical patent/GB2235744B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • F16B25/0036—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
    • F16B25/0047—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 ridge being characterised by its cross-section in the plane of the shaft axis
    • 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
    • F16B25/0073—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 characterised by its pitch, e.g. a varying pitch
GB9018840A 1989-09-04 1990-08-29 Self-tapping fastener Expired - Fee Related GB2235744B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893929332 DE3929332A1 (en) 1989-09-04 1989-09-04 SELF-FORMING SCREW

Publications (3)

Publication Number Publication Date
GB9018840D0 GB9018840D0 (en) 1990-10-10
GB2235744A GB2235744A (en) 1991-03-13
GB2235744B true GB2235744B (en) 1992-12-09

Family

ID=6388598

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9018840A Expired - Fee Related GB2235744B (en) 1989-09-04 1990-08-29 Self-tapping fastener

Country Status (2)

Country Link
DE (1) DE3929332A1 (en)
GB (1) GB2235744B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5304024A (en) * 1991-03-18 1994-04-19 Adolf Wurth Gmbh & Co. Kg Screw, method and rolling die for the production thereof
US5704750A (en) * 1997-01-16 1998-01-06 Ford Global Technologies, Inc. Multiple use screw with tapered threads
DE19753755C2 (en) * 1997-12-04 2001-07-05 Deha Ankersysteme Low-slip screw connection for rods in construction with geometrically defined counter
US6332741B1 (en) 2000-09-19 2001-12-25 Textron, Inc. Masonry anchor device
US9482258B2 (en) 2012-05-10 2016-11-01 Simpson Strong-Tie Company, Inc. Fastener with multiple threaded regions
US9651079B2 (en) 2013-03-21 2017-05-16 Simpson Strong-Tie Company, Inc. Fastener with prolate cross-section
US9523383B2 (en) 2013-03-26 2016-12-20 Simpson Strong-Tie Company, Inc. Variable thread fastener
US11181138B2 (en) 2013-03-26 2021-11-23 Simpson Strong-Tie Company, Inc. Variable thread knurl fastener
FR3010156B1 (en) 2013-08-30 2016-02-26 Faurecia Interieur Ind FIXED FIXING ELEMENT
EP3198154A1 (en) * 2014-09-22 2017-08-02 Simpson Strong-Tie Company, Inc. Variable thread fastener

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1142175A (en) * 1966-05-10 1969-02-05 Eaton Yale & Towne Self-tapping screw
US4069730A (en) * 1976-06-03 1978-01-24 Wales-Beech Corporation Thread-forming screw
US4235149A (en) * 1978-08-17 1980-11-25 Veldman Donald R Self-thread creating fastener and method and apparatus for making the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1142175A (en) * 1966-05-10 1969-02-05 Eaton Yale & Towne Self-tapping screw
US4069730A (en) * 1976-06-03 1978-01-24 Wales-Beech Corporation Thread-forming screw
US4235149A (en) * 1978-08-17 1980-11-25 Veldman Donald R Self-thread creating fastener and method and apparatus for making the same

Also Published As

Publication number Publication date
GB9018840D0 (en) 1990-10-10
DE3929332A1 (en) 1991-03-07
GB2235744A (en) 1991-03-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020829