JPS6426012A - Screw device - Google Patents

Screw device

Info

Publication number
JPS6426012A
JPS6426012A JP17965987A JP17965987A JPS6426012A JP S6426012 A JPS6426012 A JP S6426012A JP 17965987 A JP17965987 A JP 17965987A JP 17965987 A JP17965987 A JP 17965987A JP S6426012 A JPS6426012 A JP S6426012A
Authority
JP
Japan
Prior art keywords
screw
recess
hexagonal
tool engaging
embedded
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.)
Pending
Application number
JP17965987A
Other languages
Japanese (ja)
Inventor
Kenji Tamai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MIYAGAWA KINZOKU KOGYO
MIYAGAWA KINZOKU KOGYO KK
Original Assignee
MIYAGAWA KINZOKU KOGYO
MIYAGAWA KINZOKU KOGYO KK
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 by MIYAGAWA KINZOKU KOGYO, MIYAGAWA KINZOKU KOGYO KK filed Critical MIYAGAWA KINZOKU KOGYO
Priority to JP17965987A priority Critical patent/JPS6426012A/en
Publication of JPS6426012A publication Critical patent/JPS6426012A/en
Pending legal-status Critical Current

Links

Landscapes

  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

PURPOSE: To make it impossible to recognize that there is a tool engaging recess and to drive the screw out easily after the setting up by arranging a tool engaging recess in the screw head and dismountably mounting an embedded member in the recess. CONSTITUTION: A screw shaft 1 has a screw head 2 at one end. A hexagonal recess 3 as a tool engaging recess B is arranged on the screw head 2. The hexagonal recess 3 is adapted to engage with a driving tool such as a hexagonal wrench to drive in or out the screw. A female screw hole 4 is arranged in the innermost part of the hexagonal recess 3, capable of being screwed with the shaft portion 5 of an embedded screw C as an embedded member. A square recess 7a which forms an operational member 7 is arranged in the head 6 of the embedded screw C. Consequently it is difficult to recognize from outside that there exists a hexagonal recess 3 which is the tool engaging recess B, therefore it is not easy for a person not familiar with the structure of the screw A to drive out the screw A.
JP17965987A 1987-07-17 1987-07-17 Screw device Pending JPS6426012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17965987A JPS6426012A (en) 1987-07-17 1987-07-17 Screw device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17965987A JPS6426012A (en) 1987-07-17 1987-07-17 Screw device

Publications (1)

Publication Number Publication Date
JPS6426012A true JPS6426012A (en) 1989-01-27

Family

ID=16069638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17965987A Pending JPS6426012A (en) 1987-07-17 1987-07-17 Screw device

Country Status (1)

Country Link
JP (1) JPS6426012A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10045311B4 (en) * 2000-09-12 2006-07-06 Man Nutzfahrzeuge Ag Oil separator for internal combustion engines
JP2010138922A (en) * 2008-12-09 2010-06-24 Koji Ishido Friction fastener, friction fastening structure, and friction fastener set for rotating body
CN103163992A (en) * 2011-12-17 2013-06-19 鸿富锦精密工业（深圳）有限公司 Locking device
JP2017044344A (en) * 2015-08-26 2017-03-02 李超芸 Half reverse thread removal screw

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10045311B4 (en) * 2000-09-12 2006-07-06 Man Nutzfahrzeuge Ag Oil separator for internal combustion engines
DE10045311B9 (en) * 2000-09-12 2007-03-08 Man Nutzfahrzeuge Ag Oil separator for internal combustion engines
JP2010138922A (en) * 2008-12-09 2010-06-24 Koji Ishido Friction fastener, friction fastening structure, and friction fastener set for rotating body
CN103163992A (en) * 2011-12-17 2013-06-19 鸿富锦精密工业（深圳）有限公司 Locking device
JP2017044344A (en) * 2015-08-26 2017-03-02 李超芸 Half reverse thread removal screw

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