IT7828424A0 - SELF-DRILLING AND SELF-TAPPING SCREW. - Google Patents

SELF-DRILLING AND SELF-TAPPING SCREW.

Info

Publication number
IT7828424A0
IT7828424A0 IT7828424A IT2842478A IT7828424A0 IT 7828424 A0 IT7828424 A0 IT 7828424A0 IT 7828424 A IT7828424 A IT 7828424A IT 2842478 A IT2842478 A IT 2842478A IT 7828424 A0 IT7828424 A0 IT 7828424A0
Authority
IT
Italy
Prior art keywords
self
drilling
tapping screw
tapping
screw
Prior art date
Application number
IT7828424A
Other languages
Italian (it)
Other versions
IT1099243B (en
Original Assignee
Terep Techn Res & Prod Eng Co
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 Terep Techn Res & Prod Eng Co filed Critical Terep Techn Res & Prod Eng Co
Publication of IT7828424A0 publication Critical patent/IT7828424A0/en
Application granted granted Critical
Publication of IT1099243B publication Critical patent/IT1099243B/en

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/027—Rolling of self-tapping screws
    • 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
    • F16B25/0021—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 material being metal, e.g. sheet-metal or aluminium
    • 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
    • F16B25/0084—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 geometric details of the tip
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Dowels (AREA)
  • Drilling Tools (AREA)
  • Connection Of Plates (AREA)
IT28424/78A 1977-10-06 1978-10-04 SELF-PERFORATING AND SELF-THREADING SCREW IT1099243B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1224277A CH616211A5 (en) 1977-10-06 1977-10-06

Publications (2)

Publication Number Publication Date
IT7828424A0 true IT7828424A0 (en) 1978-10-04
IT1099243B IT1099243B (en) 1985-09-18

Family

ID=4381210

Family Applications (1)

Application Number Title Priority Date Filing Date
IT28424/78A IT1099243B (en) 1977-10-06 1978-10-04 SELF-PERFORATING AND SELF-THREADING SCREW

Country Status (8)

Country Link
JP (1) JPS5460641A (en)
BR (1) BR7806639A (en)
CH (1) CH616211A5 (en)
DE (1) DE2843470A1 (en)
FR (1) FR2405389A1 (en)
GB (1) GB2005171A (en)
IT (1) IT1099243B (en)
SE (1) SE7810509L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3022187C2 (en) * 1980-06-13 1983-08-11 Itw-Ateco Gmbh, 2000 Norderstedt Drilling screw
GB2100628B (en) * 1981-06-25 1985-04-11 Shinjo Seisakusho Yk A drill screw
JPS60179512A (en) * 1984-02-24 1985-09-13 株式会社ヤマヒロ Self-drilling screw and its casting die
GB2305703A (en) * 1995-09-27 1997-04-16 John Michael Pitts Screwthreaded fixing device
DE102010041165A1 (en) * 2010-09-22 2012-03-22 Adolf Würth GmbH & Co. KG Drilling screw, has screw thread extending over cylindrical screw shank, drill tip manufactured using reforming procedure and provided with major cutting edges, and minor cutting edges running parallel to longitudinal axis of screw
DE102011085232A1 (en) * 2011-10-26 2013-05-02 Fabricius Fastener Gmbh Plastic screw i.e. nipple screw, for screwing into e.g. window frame, has screw tip formed in conical shape and comprising cutting edge, which is extended from outer surface of screw tip to screw shank

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1310858A (en) * 1960-12-19 1962-11-30 Lennewerk Altena Gmbh Self-drilling sheet metal screws
GB957626A (en) * 1961-08-28 1964-05-06 Gen Am Transport Combination hole-drilling and thread-forming screw fasteners
BE620370A (en) * 1961-11-23
FR1331668A (en) * 1962-07-04 1963-07-05 Illinois Tool Works Screw fastener for wall and ceiling constructions
US3463045A (en) * 1966-05-10 1969-08-26 Illinois Tool Works Drilling screw
US3683436A (en) * 1970-01-22 1972-08-15 Textron Inc Method for making a drill screw with an extruded point
US3789725A (en) * 1971-10-06 1974-02-05 B Lindstrom Self-drilling and self-tapping fastener and method of manufacture thereof
US3782056A (en) * 1972-04-27 1974-01-01 Gen Electric Joint structure
US3937120A (en) * 1975-01-28 1976-02-10 Microdot Inc. Drill screw

Also Published As

Publication number Publication date
SE7810509L (en) 1979-04-07
IT1099243B (en) 1985-09-18
BR7806639A (en) 1979-05-02
FR2405389A1 (en) 1979-05-04
GB2005171A (en) 1979-04-19
JPS5460641A (en) 1979-05-16
CH616211A5 (en) 1980-03-14
DE2843470A1 (en) 1979-04-12
FR2405389B1 (en) 1982-12-03

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