KR900020537U - Screw - Google Patents
ScrewInfo
- Publication number
- KR900020537U KR900020537U KR2019890006989U KR890006989U KR900020537U KR 900020537 U KR900020537 U KR 900020537U KR 2019890006989 U KR2019890006989 U KR 2019890006989U KR 890006989 U KR890006989 U KR 890006989U KR 900020537 U KR900020537 U KR 900020537U
- Authority
- KR
- South Korea
- Prior art keywords
- screw
- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
- F16B35/065—Specially-shaped heads with self-countersink-cutting means
-
- 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
- F16B25/0084—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 geometric details of the tip
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Connection Of Plates (AREA)
- Joining Of Building Structures In Genera (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019890006989U KR910008551Y1 (en) | 1989-05-26 | 1989-05-26 | Nail |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019890006989U KR910008551Y1 (en) | 1989-05-26 | 1989-05-26 | Nail |
Publications (2)
Publication Number | Publication Date |
---|---|
KR900020537U true KR900020537U (en) | 1990-12-13 |
KR910008551Y1 KR910008551Y1 (en) | 1991-10-25 |
Family
ID=19286453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019890006989U KR910008551Y1 (en) | 1989-05-26 | 1989-05-26 | Nail |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR910008551Y1 (en) |
-
1989
- 1989-05-26 KR KR2019890006989U patent/KR910008551Y1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR910008551Y1 (en) | 1991-10-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E701 | Decision to grant or registration of patent right | ||
REGI | Registration of establishment | ||
LAPS | Lapse due to unpaid annual fee |