GB1006509A - Improvements in or relating to screw threaded fasteners and drivers for use therewith - Google Patents

Improvements in or relating to screw threaded fasteners and drivers for use therewith

Info

Publication number
GB1006509A
GB1006509A GB1712262A GB1712262A GB1006509A GB 1006509 A GB1006509 A GB 1006509A GB 1712262 A GB1712262 A GB 1712262A GB 1712262 A GB1712262 A GB 1712262A GB 1006509 A GB1006509 A GB 1006509A
Authority
GB
United Kingdom
Prior art keywords
wings
nib
screwhead
vertical
faces
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
GB1712262A
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.)
Gkn Screws and Fasteners Ltd
Original Assignee
Gkn Screws and Fasteners Ltd
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
Priority to US11283661A priority Critical
Application filed by Gkn Screws and Fasteners Ltd filed Critical Gkn Screws and Fasteners Ltd
Publication of GB1006509A publication Critical patent/GB1006509A/en
Application status is Expired legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B23/00Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007Specially 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
    • F16B23/0023Specially 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00Making machine elements
    • B21K1/44Making machine elements bolts, studs, or the like
    • B21K1/46Making machine elements bolts, studs, or the like with heads
    • B21K1/463Making machine elements bolts, studs, or the like with heads with recessed heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00Screwdrivers
    • B25B15/001Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/005Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with cross- or star-shaped cross-section

Abstract

1,006,509. Making screws. G.K.N. SCREW & FASTENERS Ltd. May 4, 1962 [May 26, 1961], No. 17122/62. Heading B3H. [Also in Divisions B4 and F2] To form a screwhead (see Division F2), by a cold heading operation on wire material, a first punch enlarges the wire end and then a heading punch 34 forms the head and its cruciform recess. A nib projecting from the headforming cavity 36 has four wings 39 for forming the grooves of the screwhead, and the side faces of the wings (when the nib is vertical) are vertical or the faces 46 are undercut as shown making an angle of 20 minutes to the vertical and the faces 47 are oppositely sloped up to 3 degrees to the vertical. To counteract the falling away, from the punch faces, of the screwhead metal, V-sectioned ribs 40 with ridge-extensions 41 are formed on the nib between the wings 39 and these displace the screwhead metal towards the grooves formed by the wings. Instead of ridge-extensions 41, the nib may have projections of annulussegment form, describing a broken annulus, concentric with the nib axis and extending between the wings 39 beyond the ribs 40 but not contacting either.
GB1712262A 1961-05-26 1962-05-04 Improvements in or relating to screw threaded fasteners and drivers for use therewith Expired GB1006509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11283661A true 1961-05-26 1961-05-26

Publications (1)

Publication Number Publication Date
GB1006509A true GB1006509A (en) 1965-10-06

Family

ID=22346082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1712262A Expired GB1006509A (en) 1961-05-26 1962-05-04 Improvements in or relating to screw threaded fasteners and drivers for use therewith

Country Status (10)

Country Link
AT (2) AT253309B (en)
BE (1) BE618104A (en)
CH (3) CH456312A (en)
DE (3) DE1950935U (en)
DK (1) DK113041B (en)
FI (1) FI45380C (en)
GB (1) GB1006509A (en)
LU (1) LU41783A1 (en)
MY (1) MY6600087A (en)
NL (2) NL278918A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4089357A (en) * 1975-07-19 1978-05-16 G.K.N. Fasteners Limited Threaded fastener
GB2129348A (en) * 1982-09-08 1984-05-16 Blum Gmbh Julius Screws
EP0206564A1 (en) * 1985-06-03 1986-12-30 Isotech Consultants Inc. Screw driving socket
GB2203075A (en) * 1987-03-23 1988-10-12 Salice Arturo Spa Method of manufacturing a screw head with crossed slots
US5145302A (en) * 1990-06-05 1992-09-08 Titus Tool Company Limited Screws
US5641258A (en) * 1994-04-14 1997-06-24 Sala; Carlo Recessed screw head
WO1999047821A1 (en) * 1998-03-18 1999-09-23 Casino Y Marin Casmar, S.L. New system for holding and tightening screws
WO2016100110A1 (en) 2014-12-17 2016-06-23 Research Engineering & Manufacturing Inc. Recessed head fastener and driver combination

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355552A (en) * 1980-04-14 1982-10-26 Technofast, Inc. Recessed head screw
US6223634B1 (en) * 1997-10-03 2001-05-01 Phillips Screw Company Recessed head fastener and driver systems

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2588404A (en) * 1946-09-04 1952-03-11 Herman G Muenchinger Fastening device and method of making same
FR1255865A (en) * 1959-05-05 1961-03-10 Phillips Screw Co A threaded fastener head recess

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4089357A (en) * 1975-07-19 1978-05-16 G.K.N. Fasteners Limited Threaded fastener
GB2129348A (en) * 1982-09-08 1984-05-16 Blum Gmbh Julius Screws
EP0206564A1 (en) * 1985-06-03 1986-12-30 Isotech Consultants Inc. Screw driving socket
GB2203075A (en) * 1987-03-23 1988-10-12 Salice Arturo Spa Method of manufacturing a screw head with crossed slots
US5145302A (en) * 1990-06-05 1992-09-08 Titus Tool Company Limited Screws
US5641258A (en) * 1994-04-14 1997-06-24 Sala; Carlo Recessed screw head
WO1999047821A1 (en) * 1998-03-18 1999-09-23 Casino Y Marin Casmar, S.L. New system for holding and tightening screws
US6453781B1 (en) 1998-03-18 2002-09-24 Casino Y Marin Casmar, S.L. System for holding and tightening screws
WO2016100110A1 (en) 2014-12-17 2016-06-23 Research Engineering & Manufacturing Inc. Recessed head fastener and driver combination

Also Published As

Publication number Publication date
AT241237B (en) 1965-07-12
DE1950935U (en) 1966-12-01
FI45380C (en) 1972-05-10
CH456312A (en) 1968-07-15
CH464117A (en) 1968-10-15
LU41783A1 (en) 1962-07-25
DE1949486U (en) 1966-11-10
FI45380B (en) 1972-01-31
NL133564C (en)
MY6600087A (en) 1966-12-31
AT253309B (en) 1967-04-10
DK113041B (en) 1969-02-10
DE1675640B1 (en) 1969-12-11
NL278918A (en)
CH451605A (en) 1968-05-15
BE618104A1 (en)
BE618104A (en) 1962-09-17

Similar Documents

Publication Publication Date Title
GB1323873A (en) Tubular rivet
GB1278351A (en) Plastic headed fastener
GB1179488A (en) Self-Drilling Screws
GB1164371A (en) Improvements in Blind Fasteners.
GB1012967A (en) Improvements relating to fasteners
GB1115457A (en) Improvements in propeller fastening
GB1277044A (en) Screw-type fasteners
GB975957A (en) Spreadable plug for fixing purposes
GB1150382A (en) Improvements in Screws, and a Screw Driver therefor
GB1218617A (en) Rivet and pull-stem assemblies
GB1254218A (en) Prevailing-torque lock screws
GB1004562A (en) Improvements in fasteners or bushes for anchoring in sheet material or the like
GB745788A (en) Improvements in anchoring screw threaded fasteners in workpieces
GB1079166A (en) Toggle fastener construction
GB1464754A (en) Self drilling screws
GB1328589A (en) Sports shoe spikes
GB1420025A (en) Blind rivet with recessed expanding head
GB513686A (en) Improvements in and relating to self-attaching screws, bolts, nuts, screwdrivers and spanners
GB1250650A (en)
GB1435202A (en) Aircraft automatic flight control system
GB565855A (en) Improvements relating to self-tapping screws
GB1016750A (en) Injection molding machines
GB1031583A (en) A screw and sealing washer combination
GB1015688A (en) Screw assembly for attachment of constructional members to masonry
GB913285A (en) Improvements in and relating to electrical socket connectors