JPS6123928Y2 - - Google Patents

Info

Publication number
JPS6123928Y2
JPS6123928Y2 JP8915381U JP8915381U JPS6123928Y2 JP S6123928 Y2 JPS6123928 Y2 JP S6123928Y2 JP 8915381 U JP8915381 U JP 8915381U JP 8915381 U JP8915381 U JP 8915381U JP S6123928 Y2 JPS6123928 Y2 JP S6123928Y2
Authority
JP
Japan
Prior art keywords
protrusion
drill
tip
screw
drilling
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
Application number
JP8915381U
Other languages
English (en)
Japanese (ja)
Other versions
JPS57200714U (enrdf_load_stackoverflow
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP8915381U priority Critical patent/JPS6123928Y2/ja
Publication of JPS57200714U publication Critical patent/JPS57200714U/ja
Application granted granted Critical
Publication of JPS6123928Y2 publication Critical patent/JPS6123928Y2/ja
Expired legal-status Critical Current

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)
  • Connection Of Plates (AREA)
JP8915381U 1981-06-16 1981-06-16 Expired JPS6123928Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8915381U JPS6123928Y2 (enrdf_load_stackoverflow) 1981-06-16 1981-06-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8915381U JPS6123928Y2 (enrdf_load_stackoverflow) 1981-06-16 1981-06-16

Publications (2)

Publication Number Publication Date
JPS57200714U JPS57200714U (enrdf_load_stackoverflow) 1982-12-21
JPS6123928Y2 true JPS6123928Y2 (enrdf_load_stackoverflow) 1986-07-18

Family

ID=29884309

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8915381U Expired JPS6123928Y2 (enrdf_load_stackoverflow) 1981-06-16 1981-06-16

Country Status (1)

Country Link
JP (1) JPS6123928Y2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS57200714U (enrdf_load_stackoverflow) 1982-12-21

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