BE842942A - SCREW, BOLT OR SIMILAR ELEMENT - Google Patents

SCREW, BOLT OR SIMILAR ELEMENT

Info

Publication number
BE842942A
BE842942A BE167912A BE167912A BE842942A BE 842942 A BE842942 A BE 842942A BE 167912 A BE167912 A BE 167912A BE 167912 A BE167912 A BE 167912A BE 842942 A BE842942 A BE 842942A
Authority
BE
Belgium
Prior art keywords
bolt
screw
similar element
similar
Prior art date
Application number
BE167912A
Other languages
French (fr)
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 filed Critical
Publication of BE842942A publication Critical patent/BE842942A/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
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0092—Specially shaped nuts or heads of bolts or screws for rotations by a tool with a head engageable by two or more different tools
    • 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
    • F16B23/0015—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 rectangular, e.g. one-slot head
    • 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
    • F16B23/003—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 star-shaped or multi-lobular, e.g. Torx-type, twelve-point star

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
BE167912A 1975-06-13 1976-06-14 SCREW, BOLT OR SIMILAR ELEMENT BE842942A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7518524A FR2314645A7 (en) 1975-06-13 1975-06-13 Slotted or recessed head screw - can be turned by normal of special screwdriver or by spanner

Publications (1)

Publication Number Publication Date
BE842942A true BE842942A (en) 1976-10-01

Family

ID=9156482

Family Applications (1)

Application Number Title Priority Date Filing Date
BE167912A BE842942A (en) 1975-06-13 1976-06-14 SCREW, BOLT OR SIMILAR ELEMENT

Country Status (2)

Country Link
BE (1) BE842942A (en)
FR (1) FR2314645A7 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9200093D0 (en) * 1992-01-04 1992-02-26 Gill Peter J Improved threaded fastener
ITMI20130545A1 (en) * 2013-04-09 2014-10-10 Nicolantonio Tragni DISAPPEARABLE SCREW
CN104196862A (en) * 2014-09-04 2014-12-10 叶琦 Screw
AT17033U1 (en) * 2019-12-20 2021-03-15 Avvio Gmbh & Co Kg screw drive

Also Published As

Publication number Publication date
FR2314645A7 (en) 1977-01-07

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