JPS62174111U - - Google Patents
Info
- Publication number
- JPS62174111U JPS62174111U JP6229586U JP6229586U JPS62174111U JP S62174111 U JPS62174111 U JP S62174111U JP 6229586 U JP6229586 U JP 6229586U JP 6229586 U JP6229586 U JP 6229586U JP S62174111 U JPS62174111 U JP S62174111U
- Authority
- JP
- Japan
- Prior art keywords
- groove surface
- inclined end
- end surfaces
- drill
- drill part
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
- F16B25/103—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a drilling screw-point, i.e. with a cutting and material removing action
-
- 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)
- Drilling Tools (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6229586U JPH0231608Y2 (it) | 1986-04-24 | 1986-04-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6229586U JPH0231608Y2 (it) | 1986-04-24 | 1986-04-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62174111U true JPS62174111U (it) | 1987-11-05 |
| JPH0231608Y2 JPH0231608Y2 (it) | 1990-08-27 |
Family
ID=30896429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6229586U Expired JPH0231608Y2 (it) | 1986-04-24 | 1986-04-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0231608Y2 (it) |
-
1986
- 1986-04-24 JP JP6229586U patent/JPH0231608Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0231608Y2 (it) | 1990-08-27 |