ZA728229B - Recess in fastening element head and method of making it - Google Patents

Recess in fastening element head and method of making it

Info

Publication number
ZA728229B
ZA728229B ZA728229A ZA728229A ZA728229B ZA 728229 B ZA728229 B ZA 728229B ZA 728229 A ZA728229 A ZA 728229A ZA 728229 A ZA728229 A ZA 728229A ZA 728229 B ZA728229 B ZA 728229B
Authority
ZA
South Africa
Prior art keywords
recess
making
fastening element
element head
head
Prior art date
Application number
ZA728229A
Other languages
English (en)
Inventor
L Rivalland
A Mcgarry
Original Assignee
Utility Prod 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 Utility Prod Ltd filed Critical Utility Prod Ltd
Priority to ZA728229A priority Critical patent/ZA728229B/xx
Priority to US413295A priority patent/US3898706A/en
Priority to GB5149673A priority patent/GB1406578A/en
Priority to CA185,338A priority patent/CA983744A/en
Priority to AU62433/73A priority patent/AU6243373A/en
Priority to DE2357296A priority patent/DE2357296A1/de
Priority to FR7341215A priority patent/FR2213118B1/fr
Priority to JP48130646A priority patent/JPS4981750A/ja
Priority to IT7331490A priority patent/IT1001842B/it
Publication of ZA728229B publication Critical patent/ZA728229B/xx

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
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0023—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially cross-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/46—Making machine elements bolts, studs, or the like with heads
    • B21K1/463—Making machine elements bolts, studs, or the like with heads with recessed heads
    • 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
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0076—Specially shaped nuts or heads of bolts or screws for rotations by a tool causing slipping of the tool in loosening rotation, i.e. disabling unscrewing unless another tool is used

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
ZA728229A 1972-11-21 1972-11-21 Recess in fastening element head and method of making it ZA728229B (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
ZA728229A ZA728229B (en) 1972-11-21 1972-11-21 Recess in fastening element head and method of making it
US413295A US3898706A (en) 1972-11-21 1973-11-06 Method of forming a recess in a fastening element head
GB5149673A GB1406578A (en) 1972-11-21 1973-11-06 Recess in fastening element head and method of making it
CA185,338A CA983744A (en) 1972-11-21 1973-11-08 Recess in fastening element head and method of making it
AU62433/73A AU6243373A (en) 1972-11-21 1973-11-13 Recess in fastening element head and method of making
DE2357296A DE2357296A1 (de) 1972-11-21 1973-11-16 Befestigungselement mit einem eine ausnehmung zum ansetzen eines werkzeuges aufweisenden kopf und verfahren zur herstellung desselben
FR7341215A FR2213118B1 (zh) 1972-11-21 1973-11-20
JP48130646A JPS4981750A (zh) 1972-11-21 1973-11-20
IT7331490A IT1001842B (it) 1972-11-21 1973-11-21 Intaglio nella testa di un ele mento di fissaggio e metodo di realizzazione dello stesso

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA728229A ZA728229B (en) 1972-11-21 1972-11-21 Recess in fastening element head and method of making it

Publications (1)

Publication Number Publication Date
ZA728229B true ZA728229B (en) 1974-03-27

Family

ID=25565629

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA728229A ZA728229B (en) 1972-11-21 1972-11-21 Recess in fastening element head and method of making it

Country Status (8)

Country Link
US (1) US3898706A (zh)
JP (1) JPS4981750A (zh)
AU (1) AU6243373A (zh)
CA (1) CA983744A (zh)
DE (1) DE2357296A1 (zh)
FR (1) FR2213118B1 (zh)
GB (1) GB1406578A (zh)
ZA (1) ZA728229B (zh)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2445743A1 (fr) * 1979-01-04 1980-08-01 Badre Emile Nouvelles tetes de vis, boulons, tire-fonds ou analogues, pouvant etre matricees a chaud ou a froid, sans bavures, ainsi que le procede et l'outillage utilise a cet effet
FR2457139A2 (fr) * 1979-01-04 1980-12-19 Badre Emile Nouvelles tetes de vis, boulons, tire-fond ou analogues pouvant etre matricees a chaud ou a froid, sans bavures, ainsi que le procede et l'outillage utilises a cet effet
AU7185881A (en) * 1980-06-12 1981-12-17 Kevin Paul Castles Punch and die assembly
GB2149872A (en) * 1983-11-17 1985-06-19 Peter John Gill Tamper resistant fasteners
AU593029B2 (en) * 1985-10-21 1990-02-01 Barrie David Powell Fastener anti-theft device
GB2236569B (en) * 1989-10-03 1993-11-17 Norman Cropper A security screw
CA2140475C (en) * 1995-01-18 2000-03-07 Uli Walther Screw
US5957645A (en) 1997-10-31 1999-09-28 Phillips Screw Company Spiral drive system for threaded fasteners
JP3379085B2 (ja) * 1998-02-26 2003-02-17 日本ビクター株式会社 偏向ヨーク及びネジコアの製造方法
US20060025225A1 (en) * 2004-08-02 2006-02-02 Keng-Shui Wu Screw head slot shaper
US7255522B2 (en) * 2004-10-07 2007-08-14 Phillips Screw Company Spiral drive fastener with engagement ramp
FR2923742B1 (fr) * 2007-11-20 2010-04-02 Prost Decolletage Vis complexe et son procede de realisation
EP2283241A4 (en) * 2008-04-21 2012-04-04 Asia Fastening Us Inc TRAINING SYSTEM
CN105710223A (zh) * 2016-04-28 2016-06-29 宝鸡市金海源钛标准件制品有限公司 用于制造钛合金凹穴内十字螺钉的成型模具
CN111805017B (zh) * 2020-06-30 2022-07-08 临沂矿业集团菏泽煤电有限公司 一种螺栓螺母清理复用装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US162642A (en) * 1875-04-27 Improvement in the art of manufacturing wood-screw blanks
US1125272A (en) * 1914-04-14 1915-01-19 Universal Caster & Foundry Company Socket for caster-pintles.
US2258326A (en) * 1940-02-23 1941-10-07 Grant J Holt Screwhead
US2643142A (en) * 1949-10-24 1953-06-23 Domnie V Stellin Floating tool mounting means
US2986752A (en) * 1958-09-23 1961-06-06 Gen Am Transport Methods of forming by punching a cruciform recess in a headed fastener
US3166769A (en) * 1962-02-28 1965-01-26 Illinois Tool Works Method and apparatus for heading a fastener
US3471878A (en) * 1966-10-12 1969-10-14 Torrington Co Punch and die devices

Also Published As

Publication number Publication date
GB1406578A (en) 1975-09-17
CA983744A (en) 1976-02-17
US3898706A (en) 1975-08-12
JPS4981750A (zh) 1974-08-07
DE2357296A1 (de) 1974-05-30
FR2213118A1 (zh) 1974-08-02
AU6243373A (en) 1975-05-15
FR2213118B1 (zh) 1978-02-10

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