CA977192A - Self tapping fastener and method and dies for making same - Google Patents

Self tapping fastener and method and dies for making same

Info

Publication number
CA977192A
CA977192A CA163,957A CA163957A CA977192A CA 977192 A CA977192 A CA 977192A CA 163957 A CA163957 A CA 163957A CA 977192 A CA977192 A CA 977192A
Authority
CA
Canada
Prior art keywords
dies
making same
self tapping
tapping fastener
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
Application number
CA163,957A
Other languages
English (en)
Other versions
CA163957S (en
Inventor
Edwin J. Skierski
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.)
USM Corp
Original Assignee
USM Corp
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 USM Corp filed Critical USM Corp
Priority to CA202,319A priority Critical patent/CA985463A/en
Application granted granted Critical
Publication of CA977192A publication Critical patent/CA977192A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16B25/0042—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
    • F16B25/0052—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 having indentations, notches or the like in order to improve the cutting behaviour

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Forging (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
CA163,957A 1972-05-24 1973-02-16 Self tapping fastener and method and dies for making same Expired CA977192A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA202,319A CA985463A (en) 1972-05-24 1974-06-11 Method and dies for making a self-tapping, threaded fastener

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25637072A 1972-05-24 1972-05-24

Publications (1)

Publication Number Publication Date
CA977192A true CA977192A (en) 1975-11-04

Family

ID=22972001

Family Applications (1)

Application Number Title Priority Date Filing Date
CA163,957A Expired CA977192A (en) 1972-05-24 1973-02-16 Self tapping fastener and method and dies for making same

Country Status (18)

Country Link
AT (1) AT339118B (no)
BE (1) BE799936A (no)
CA (1) CA977192A (no)
CH (1) CH572165A5 (no)
DE (2) DE2322351A1 (no)
ES (1) ES415433A1 (no)
FI (1) FI58819C (no)
FR (1) FR2186084A5 (no)
GB (2) GB1376586A (no)
HK (2) HK65878A (no)
IE (1) IE37620B1 (no)
IL (1) IL42270A0 (no)
IT (1) IT987827B (no)
LU (1) LU67649A1 (no)
NL (1) NL174914C (no)
NO (2) NO139343C (no)
SE (1) SE397394B (no)
ZA (1) ZA733514B (no)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2703433A1 (de) * 1977-01-28 1978-12-07 Schumacher Wilhelm Kg Gewindeformende schraube sowie verfahren zum herstellen derselben und walzbacke zur durchfuehrung des verfahrens
DE2844412C2 (de) * 1978-10-12 1986-03-27 Standard Elektrik Lorenz Ag, 7000 Stuttgart Becherförmiges Gehäuse für elektrische Bauelemente
US4411147A (en) * 1981-08-12 1983-10-25 Russell Burdsall & Ward Corporation Rolling dies and method of forming the same
DE102022121434A1 (de) 2022-08-24 2024-02-29 Ejot Se & Co. Kg Schraube für die Direktverschraubung in ein Bauteil
DE102022121435A1 (de) 2022-08-24 2024-02-29 Ejot Se & Co. Kg Schraube für die Direktverschraubung in ein Bauteil

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2348850A (en) * 1939-05-03 1944-05-16 Groov Pin Corp Art of screw rolling
FR1337952A (fr) * 1961-10-25 1963-09-20 Gen Am Transport Outils à tarauder sans rainure et leurs procédés de fabrication
US3426642A (en) * 1962-02-05 1969-02-11 Res Eng & Mfg Self-tapping screws with threadforming projections
US3504722A (en) * 1968-11-20 1970-04-07 Lamson & Sessions Co Thread forming and locking fastener

Also Published As

Publication number Publication date
FI58819B (fi) 1980-12-31
NO139343C (no) 1979-02-21
DE2322351A1 (de) 1973-12-06
AT339118B (de) 1977-10-10
LU67649A1 (no) 1973-07-26
NL7307022A (no) 1973-11-27
NL174914C (nl) 1984-09-03
GB1376585A (en) 1974-12-04
NL174914B (nl) 1984-04-02
FR2186084A5 (no) 1974-01-04
IT987827B (it) 1975-03-20
IE37620L (en) 1973-11-24
IE37620B1 (en) 1977-08-31
NO139343B (no) 1978-11-13
CH572165A5 (no) 1976-01-30
HK65778A (en) 1978-11-24
ES415433A1 (es) 1976-02-16
FI58819C (fi) 1981-04-10
IL42270A0 (en) 1973-07-30
BE799936A (fr) 1973-09-17
GB1376586A (en) 1974-12-04
SE397394B (sv) 1977-10-31
ZA733514B (en) 1974-11-27
ATA448573A (de) 1977-01-15
NO750695L (no) 1973-11-27
DE2322351C2 (no) 1990-08-23
AU5598073A (en) 1974-11-28
HK65878A (en) 1978-11-24

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