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
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
- F16B23/0076—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)
- Surgical Instruments (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE343385A true BE343385A (en:Method) |
Family
ID=19702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE343385D BE343385A (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE343385A (en:Method) |
-
0
- BE BE343385D patent/BE343385A/fr unknown
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