BE343385A - - Google Patents

Info

Publication number
BE343385A
BE343385A BE343385DA BE343385A BE 343385 A BE343385 A BE 343385A BE 343385D A BE343385D A BE 343385DA BE 343385 A BE343385 A BE 343385A
Authority
BE
Belgium
Prior art keywords
screw
head
screwdriver
faces
groove
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE343385A publication Critical patent/BE343385A/fr

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0076Specially 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)
  • Surgical Instruments (AREA)
BE343385D BE343385A (enExample)

Publications (1)

Publication Number Publication Date
BE343385A true BE343385A (enExample)

Family

ID=19702

Family Applications (1)

Application Number Title Priority Date Filing Date
BE343385D BE343385A (enExample)

Country Status (1)

Country Link
BE (1) BE343385A (enExample)

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