SE7603878L - DRILL SCREW - Google Patents

DRILL SCREW

Info

Publication number
SE7603878L
SE7603878L SE7603878A SE7603878A SE7603878L SE 7603878 L SE7603878 L SE 7603878L SE 7603878 A SE7603878 A SE 7603878A SE 7603878 A SE7603878 A SE 7603878A SE 7603878 L SE7603878 L SE 7603878L
Authority
SE
Sweden
Prior art keywords
shank
projecting means
thread
hole
screw
Prior art date
Application number
SE7603878A
Other languages
Swedish (sv)
Other versions
SE441382B (en
Inventor
B Brindle
Original Assignee
Deutsher Pty Ltd
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 Deutsher Pty Ltd filed Critical Deutsher Pty Ltd
Publication of SE7603878L publication Critical patent/SE7603878L/en
Publication of SE441382B publication Critical patent/SE441382B/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
    • 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
    • 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
    • F16B25/0089—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw the screw having wings
    • 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

Abstract

This invention relates to drill screws with extending ears to ream a hole in object with the ears breaking off when the screw enters a second object in which a smaller hole is drilled. The inventive screw is adapted to fasten two or more juxtaposed work pieces and it comprises a tip, a shank, and a head, a screw thread on a substantial part of the length of the shank, and means projecting from a part of the shank lying between the tip and the thread. The projecting means is integral with the shank and operative in materials of less than a predetermined hardness to form a hole having a diameter at least as great as the pitch diameter of the thread, but being so weakly connected to the shank that, in materials of more than the predetermined hardness, the projecting means is broken. The projecting means is of non-rectangular configuration and is such that upon being broken there is substantially none of the projecting means remaining which projects beyond the shank.
SE7603878A 1975-04-02 1976-04-01 DRILLING AND CLEANING SCREWS FOR FIXING TWO OR MORE TO LOCATE THE WORK PIECE WITH DIFFERENT HARDNESS SE441382B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPC108375 1975-04-02

Publications (2)

Publication Number Publication Date
SE7603878L true SE7603878L (en) 1976-10-03
SE441382B SE441382B (en) 1985-09-30

Family

ID=3766151

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7603878A SE441382B (en) 1975-04-02 1976-04-01 DRILLING AND CLEANING SCREWS FOR FIXING TWO OR MORE TO LOCATE THE WORK PIECE WITH DIFFERENT HARDNESS

Country Status (9)

Country Link
JP (1) JPS51123461A (en)
AU (1) AU1224676A (en)
CA (1) CA1042243A (en)
DE (1) DE2613720C2 (en)
ES (1) ES446572A1 (en)
FR (1) FR2306362A1 (en)
GB (1) GB1513085A (en)
IT (1) IT1058887B (en)
SE (1) SE441382B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT369871B (en) * 1980-09-30 1983-02-10 Sfs Stadler Ag SELF-DRILLING SCREW
DE3346704A1 (en) * 1983-12-23 1985-07-04 Richter-System GmbH & Co KG, 6103 Griesheim SELF-TAPING QUICK-SCREW SCREW
US4625473A (en) * 1985-02-22 1986-12-02 Berntsen, Inc. Anti-twist rod section and method of using the same in survey monument placement
JPH02101112U (en) * 1989-01-26 1990-08-13
US5046905A (en) * 1989-07-06 1991-09-10 Emhart Inc. Winged drill screw
DE4112591C1 (en) * 1991-04-17 1992-08-27 Sfs Stadler Holding Ag, Heerbrugg, Ch
CH687036A5 (en) * 1993-01-25 1996-08-30 Spreiter Johann Ulrich Bolts.
WO2007134361A1 (en) * 2006-05-19 2007-11-29 Itw Australia Pty Ltd Clearance hole cutting screw
AU2007201924B2 (en) * 2006-05-19 2010-08-12 Illinois Tool Works Inc. Screw

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1506798A1 (en) * 1966-04-14
CA981944A (en) * 1972-10-30 1976-01-20 John J. Hart Drill screw

Also Published As

Publication number Publication date
JPS541852B2 (en) 1979-01-30
DE2613720C2 (en) 1986-09-11
FR2306362B3 (en) 1978-12-22
AU1224676A (en) 1977-10-13
SE441382B (en) 1985-09-30
JPS51123461A (en) 1976-10-28
ES446572A1 (en) 1977-06-16
DE2613720A1 (en) 1976-10-14
GB1513085A (en) 1978-06-07
CA1042243A (en) 1978-11-14
IT1058887B (en) 1982-05-10
FR2306362A1 (en) 1976-10-29

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