CA1142000A - Self-drilling, self-tapping fastener - Google Patents

Self-drilling, self-tapping fastener

Info

Publication number
CA1142000A
CA1142000A CA000372182A CA372182A CA1142000A CA 1142000 A CA1142000 A CA 1142000A CA 000372182 A CA000372182 A CA 000372182A CA 372182 A CA372182 A CA 372182A CA 1142000 A CA1142000 A CA 1142000A
Authority
CA
Canada
Prior art keywords
self
conical segment
drilling
segment
flat side
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
Application number
CA000372182A
Other languages
English (en)
French (fr)
Inventor
John E. Bettini
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Application granted granted Critical
Publication of CA1142000A publication Critical patent/CA1142000A/en
Expired 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
    • F16B25/0084—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
    • F16B25/001—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
    • F16B25/0068—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 with multiple-threads, e.g. a double thread 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
    • F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
    • F16B25/103—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a drilling screw-point, i.e. with a cutting and material removing action

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Dowels (AREA)
  • Connection Of Plates (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
CA000372182A 1980-03-07 1981-03-03 Self-drilling, self-tapping fastener Expired CA1142000A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12821180A 1980-03-07 1980-03-07
US128,211 1980-03-07

Publications (1)

Publication Number Publication Date
CA1142000A true CA1142000A (en) 1983-03-01

Family

ID=22434207

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000372182A Expired CA1142000A (en) 1980-03-07 1981-03-03 Self-drilling, self-tapping fastener

Country Status (11)

Country Link
JP (1) JPS56134613A (xx)
AU (1) AU543900B2 (xx)
BR (1) BR8101270A (xx)
CA (1) CA1142000A (xx)
DE (1) DE3108010A1 (xx)
FR (1) FR2477649B1 (xx)
GB (1) GB2070996B (xx)
IE (1) IE51170B1 (xx)
IT (1) IT1137407B (xx)
MX (1) MX151872A (xx)
ZA (1) ZA811222B (xx)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439077A (en) * 1982-02-11 1984-03-27 Godsted Kent B Concrete screw anchor
JPS59164410A (ja) * 1983-03-07 1984-09-17 インテリア・フアスナ−ズ・インコ−ポレイテツド ねじ具
DE3346704A1 (de) * 1983-12-23 1985-07-04 Richter-System GmbH & Co KG, 6103 Griesheim Selbstschneidende schnellbauschraube
SE442047B (sv) * 1984-05-23 1985-11-25 Anders Sahlin Treskruv
CH682174A5 (xx) * 1990-06-23 1993-07-30 Mungo Befestigungstech Ag
JP3245464B2 (ja) * 1992-11-26 2002-01-15 株式会社スズキ螺子製作所 弛み防止ねじ
US5779417A (en) * 1997-05-12 1998-07-14 Illinois Tool Works Inc. Fastener having primary and secondary threads
US7040850B2 (en) * 2003-08-04 2006-05-09 Power Products Iii, L.L.C. Fastener for use with frangible material
US20090185880A1 (en) * 2008-01-18 2009-07-23 Yongping Gong Universal fastener
US20150289916A1 (en) * 2014-04-15 2015-10-15 Chester H. Sharps Bone screws having more than three leads
WO2019074696A1 (en) * 2017-10-09 2019-04-18 Conmed Corporation CANULAR BONE SCREW WITH EASY START

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3093028A (en) * 1959-02-05 1963-06-11 Eaton Mfg Co Self-drilling and self-tapping threaded fastener
DE1400842A1 (de) * 1961-12-01 1969-02-13 Jllinois Tool Works Inc Schraube
US3207024A (en) * 1962-08-20 1965-09-21 Illinois Tool Works Drill point screw
US3438299A (en) * 1968-01-26 1969-04-15 Illinois Tool Works Extruding screw
NO125290B (xx) * 1968-10-23 1972-08-14 Bultfabriks Ab
DE2913482A1 (de) * 1979-04-04 1980-10-16 Frank Knoche Selbstbohrende schraube

Also Published As

Publication number Publication date
AU543900B2 (en) 1985-05-09
FR2477649B1 (fr) 1985-12-06
BR8101270A (pt) 1981-09-08
IT8120125A0 (it) 1981-03-04
FR2477649A1 (fr) 1981-09-11
IE810488L (en) 1981-09-07
IT1137407B (it) 1986-09-10
AU6763781A (en) 1981-09-10
JPH0223725B2 (xx) 1990-05-25
DE3108010A1 (de) 1982-01-07
ZA811222B (en) 1982-09-29
GB2070996A (en) 1981-09-16
IE51170B1 (en) 1986-10-29
GB2070996B (en) 1984-01-04
MX151872A (es) 1985-04-15
JPS56134613A (en) 1981-10-21

Similar Documents

Publication Publication Date Title
US4693654A (en) Self-drilling, self-tapping fastener
US4069730A (en) Thread-forming screw
US4028987A (en) Self-drilling screws
US4125050A (en) Self-drilling screw
AU2002300050B2 (en) Multi-mate fastener
US3125923A (en) hanneman
US4480951A (en) Self-drilling screw
US3738218A (en) Drilling and thread forming fastener
US3233500A (en) Screw with main shank threads of a given pitch merging with threads of unlike pitch on a tapered bottom end of the screw shank
US6328516B1 (en) Screw with cutting edge
CA1142000A (en) Self-drilling, self-tapping fastener
US11204055B2 (en) Sheet metal screw
US11572915B2 (en) Screw-type fastener for cement board
US5807039A (en) Drill bit
US6402448B1 (en) Self-drilling and self-tapping screw
US2096937A (en) Thread-cutting fastener
US20190390700A1 (en) Screw-type fastener for cement board
US2871752A (en) Screw having a drill point and serrated cutting edge
US4583898A (en) Drill screw and cutters for making same
US3044341A (en) Drilling, reaming and tapping screw
US4599024A (en) Entering end portion of drill screw
US2035298A (en) Auger bit
US4192217A (en) Self-drilling screw
US4725175A (en) Groove point screw
EP0121108A1 (en) Self-drilling and self-extruding screw

Legal Events

Date Code Title Description
MKEX Expiry