GB957626A - Combination hole-drilling and thread-forming screw fasteners - Google Patents
Combination hole-drilling and thread-forming screw fastenersInfo
- Publication number
- GB957626A GB957626A GB3089661A GB3089661A GB957626A GB 957626 A GB957626 A GB 957626A GB 3089661 A GB3089661 A GB 3089661A GB 3089661 A GB3089661 A GB 3089661A GB 957626 A GB957626 A GB 957626A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drilling
- thread
- screw fasteners
- forming screw
- combination hole
- 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.)
- Expired
Links
- 238000005553 drilling Methods 0.000 title abstract 3
- 238000010079 rubber tapping Methods 0.000 abstract 2
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
- F16B25/0036—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
-
- 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Connection Of Plates (AREA)
- Dowels (AREA)
Abstract
957,626. Self-tapping screws. GENERAL AMERICAN TRANSPORTATION CORPORATION. Aug. 28, 1961, No. 30896/61. Heading F2H. [Also in Division B3] A self-tapping screw 10 comprises cutting edges 13 at its point 12 for drilling a hole, and locking projections 18 on the head 17 for engaging the work. Figs. 4, 7C, 8C and 9C are sectional views across the drilling end of various embodiments. A screw-driving slot -may be formed in the head 17.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3089661A GB957626A (en) | 1961-08-28 | 1961-08-28 | Combination hole-drilling and thread-forming screw fasteners |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3089661A GB957626A (en) | 1961-08-28 | 1961-08-28 | Combination hole-drilling and thread-forming screw fasteners |
Publications (1)
Publication Number | Publication Date |
---|---|
GB957626A true GB957626A (en) | 1964-05-06 |
Family
ID=10314808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3089661A Expired GB957626A (en) | 1961-08-28 | 1961-08-28 | Combination hole-drilling and thread-forming screw fasteners |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB957626A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2405389A1 (en) * | 1977-10-06 | 1979-05-04 | Lucain Alfred | SELF-DRILLING AND SELF-TAPPING SCREW |
DE3337534A1 (en) * | 1983-10-14 | 1985-05-02 | Alfons 5758 Fröndenberg Knoche | Universal screw, tool for producing universal screws of this type, and screwdriver for universal screws of this type |
FR2669062A1 (en) * | 1990-11-14 | 1992-05-15 | Prospection Invention Tech | Fastening element for material of the gypsum type |
FR2719092A1 (en) * | 1994-04-25 | 1995-10-27 | Ptb Sa | Automatic drilling and self=tapping screw |
EP1764519A1 (en) * | 2005-09-20 | 2007-03-21 | Taiwan Shan Yin International Co., Ltd. | Screw with multiple cutting ridges in end section |
JP2014119023A (en) * | 2012-12-17 | 2014-06-30 | Mitsubishi Electric Corp | Wood screw |
TWI626385B (en) * | 2016-08-26 | 2018-06-11 | Zhao ying qing | Screw structure |
-
1961
- 1961-08-28 GB GB3089661A patent/GB957626A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2405389A1 (en) * | 1977-10-06 | 1979-05-04 | Lucain Alfred | SELF-DRILLING AND SELF-TAPPING SCREW |
DE3337534A1 (en) * | 1983-10-14 | 1985-05-02 | Alfons 5758 Fröndenberg Knoche | Universal screw, tool for producing universal screws of this type, and screwdriver for universal screws of this type |
FR2669062A1 (en) * | 1990-11-14 | 1992-05-15 | Prospection Invention Tech | Fastening element for material of the gypsum type |
FR2719092A1 (en) * | 1994-04-25 | 1995-10-27 | Ptb Sa | Automatic drilling and self=tapping screw |
EP1764519A1 (en) * | 2005-09-20 | 2007-03-21 | Taiwan Shan Yin International Co., Ltd. | Screw with multiple cutting ridges in end section |
JP2014119023A (en) * | 2012-12-17 | 2014-06-30 | Mitsubishi Electric Corp | Wood screw |
TWI626385B (en) * | 2016-08-26 | 2018-06-11 | Zhao ying qing | Screw structure |
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