GB1376585A - Fasteners - Google Patents

Fasteners

Info

Publication number
GB1376585A
GB1376585A GB2477973A GB2477973A GB1376585A GB 1376585 A GB1376585 A GB 1376585A GB 2477973 A GB2477973 A GB 2477973A GB 2477973 A GB2477973 A GB 2477973A GB 1376585 A GB1376585 A GB 1376585A
Authority
GB
United Kingdom
Prior art keywords
lobes
tapering
die
shank portion
thread
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
GB2477973A
Other languages
English (en)
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
Publication of GB1376585A publication Critical patent/GB1376585A/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)
GB2477973A 1972-05-24 1973-05-23 Fasteners Expired GB1376585A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1376585A true GB1376585A (en) 1974-12-04

Family

ID=22972001

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1473274A Expired GB1376586A (en) 1972-05-24 1973-05-23 Fasteners
GB2477973A Expired GB1376585A (en) 1972-05-24 1973-05-23 Fasteners

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1473274A Expired GB1376586A (en) 1972-05-24 1973-05-23 Fasteners

Country Status (18)

Country Link
AT (1) AT339118B (de)
BE (1) BE799936A (de)
CA (1) CA977192A (de)
CH (1) CH572165A5 (de)
DE (2) DE2322351C2 (de)
ES (1) ES415433A1 (de)
FI (1) FI58819C (de)
FR (1) FR2186084A5 (de)
GB (2) GB1376586A (de)
HK (2) HK65778A (de)
IE (1) IE37620B1 (de)
IL (1) IL42270A0 (de)
IT (1) IT987827B (de)
LU (1) LU67649A1 (de)
NL (1) NL174914C (de)
NO (2) NO139343C (de)
SE (1) SE397394B (de)
ZA (1) ZA733514B (de)

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
CH572165A5 (de) 1976-01-30
IE37620B1 (en) 1977-08-31
HK65878A (en) 1978-11-24
NL7307022A (de) 1973-11-27
ZA733514B (en) 1974-11-27
ES415433A1 (es) 1976-02-16
NO139343C (no) 1979-02-21
SE397394B (sv) 1977-10-31
FI58819B (fi) 1980-12-31
NL174914C (nl) 1984-09-03
DE2322351C2 (de) 1990-08-23
NO139343B (no) 1978-11-13
NO750695L (de) 1973-11-27
AU5598073A (en) 1974-11-28
NL174914B (nl) 1984-04-02
LU67649A1 (de) 1973-07-26
FI58819C (fi) 1981-04-10
HK65778A (en) 1978-11-24
FR2186084A5 (de) 1974-01-04
IT987827B (it) 1975-03-20
CA977192A (en) 1975-11-04
BE799936A (fr) 1973-09-17
DE2322351A1 (de) 1973-12-06
AT339118B (de) 1977-10-10
IE37620L (en) 1973-11-24
IL42270A0 (en) 1973-07-30
GB1376586A (en) 1974-12-04
ATA448573A (de) 1977-01-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19930522