GB1420092A - Recessed head threaded fastener and associated tool - Google Patents

Recessed head threaded fastener and associated tool

Info

Publication number
GB1420092A
GB1420092A GB2407172A GB2407172A GB1420092A GB 1420092 A GB1420092 A GB 1420092A GB 2407172 A GB2407172 A GB 2407172A GB 2407172 A GB2407172 A GB 2407172A GB 1420092 A GB1420092 A GB 1420092A
Authority
GB
United Kingdom
Prior art keywords
side walls
tool
driving
torque
maximum
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
GB2407172A
Other languages
English (en)
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.)
Brooks Leicester Ltd T J
Original Assignee
Brooks Leicester Ltd T J
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 Brooks Leicester Ltd T J filed Critical Brooks Leicester Ltd T J
Priority to GB2407172A priority Critical patent/GB1420092A/en
Priority to FR7318371A priority patent/FR2186083A5/fr
Publication of GB1420092A publication Critical patent/GB1420092A/en
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
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • 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
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0023—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially cross-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
GB2407172A 1972-05-23 1972-05-23 Recessed head threaded fastener and associated tool Expired GB1420092A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2407172A GB1420092A (en) 1972-05-23 1972-05-23 Recessed head threaded fastener and associated tool
FR7318371A FR2186083A5 (enrdf_load_stackoverflow) 1972-05-23 1973-05-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2407172A GB1420092A (en) 1972-05-23 1972-05-23 Recessed head threaded fastener and associated tool

Publications (1)

Publication Number Publication Date
GB1420092A true GB1420092A (en) 1976-01-07

Family

ID=10205913

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2407172A Expired GB1420092A (en) 1972-05-23 1972-05-23 Recessed head threaded fastener and associated tool

Country Status (2)

Country Link
FR (1) FR2186083A5 (enrdf_load_stackoverflow)
GB (1) GB1420092A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0038031A1 (en) * 1980-04-14 1981-10-21 Technofast, Inc. Recessed head screw
AT398231B (de) * 1991-06-04 1994-10-25 Cvetkovic Mirko Schraubenkopf mit schlitzen
US5647712A (en) * 1996-05-09 1997-07-15 Fleetguard, Inc. One directional socket-driven component
GB2312234A (en) * 1996-04-17 1997-10-22 Baxter Int Actuator knob for releasable clamp

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0038031A1 (en) * 1980-04-14 1981-10-21 Technofast, Inc. Recessed head screw
US4355552A (en) * 1980-04-14 1982-10-26 Technofast, Inc. Recessed head screw
AT398231B (de) * 1991-06-04 1994-10-25 Cvetkovic Mirko Schraubenkopf mit schlitzen
GB2312234A (en) * 1996-04-17 1997-10-22 Baxter Int Actuator knob for releasable clamp
US5779207A (en) * 1996-04-17 1998-07-14 Danby; Hal Medical device clamp
GB2312234B (en) * 1996-04-17 2000-07-19 Baxter Int Medical device clamp
US5647712A (en) * 1996-05-09 1997-07-15 Fleetguard, Inc. One directional socket-driven component

Also Published As

Publication number Publication date
FR2186083A5 (enrdf_load_stackoverflow) 1974-01-04

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees