ES285333U - A screw. - Google Patents

A screw.

Info

Publication number
ES285333U
ES285333U ES1983285333U ES285333U ES285333U ES 285333 U ES285333 U ES 285333U ES 1983285333 U ES1983285333 U ES 1983285333U ES 285333 U ES285333 U ES 285333U ES 285333 U ES285333 U ES 285333U
Authority
ES
Spain
Prior art keywords
screw
thread
crest
threads
conical
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.)
Granted
Application number
ES1983285333U
Other languages
Spanish (es)
Other versions
ES285333Y (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.)
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
Application filed by GKN Screws and Fasteners Ltd filed Critical GKN Screws and Fasteners Ltd
Publication of ES285333U publication Critical patent/ES285333U/en
Application granted granted Critical
Publication of ES285333Y publication Critical patent/ES285333Y/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
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • 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
    • F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
    • F16B25/0015—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being a soft organic material, e.g. wood or plastic
    • 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
    • F16B25/0042—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 the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
    • F16B25/0047—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 the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the ridge being characterised by its cross-section in the plane of the shaft axis

Abstract

A screw usable as either a wood screw or a self-tapping screw comprises a two start helical thread (12) having a helix angle of 20<o> or more with an included angle to the thread profile at its crest of 40<o> or less. The threads are raised rapidly from a conical un-threaded entry point (14) and the thread crest diameter is greater than that of the unthreaded shank portion (10) of the screw.
ES1983285333U 1982-12-17 1983-12-16 SCREW. Expired ES285333Y (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8236024 1982-12-17

Publications (2)

Publication Number Publication Date
ES285333U true ES285333U (en) 1985-09-01
ES285333Y ES285333Y (en) 1989-08-01

Family

ID=10535066

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1983285333U Expired ES285333Y (en) 1982-12-17 1983-12-16 SCREW.

Country Status (11)

Country Link
EP (1) EP0161250A1 (en)
KR (1) KR840007454A (en)
ES (1) ES285333Y (en)
GB (1) GB2131907B (en)
HK (1) HK77787A (en)
IT (2) IT8368312A0 (en)
NO (1) NO842746L (en)
NZ (1) NZ206599A (en)
SG (1) SG51387G (en)
WO (1) WO1984002380A1 (en)
ZA (1) ZA839333B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT389923B (en) * 1988-01-29 1990-02-26 Sfs Stadler Ag SELF-DRILLING AND THREADING SCREW FOR TURNING INTO GAS-CONCRETE
GB8912483D0 (en) * 1989-05-31 1989-07-19 Unifix Ltd A fastening device
US5244327A (en) * 1992-04-29 1993-09-14 Whitesell Neil L Trailer bed fastener
GB2325288A (en) * 1997-05-14 1998-11-18 Europ Ind Services Limited Threaded fastener, and method and rolling dies for making it
US6702537B2 (en) * 2001-01-12 2004-03-09 Illinois Tool Works Inc. High profile thread forming screw
DE10228505A1 (en) * 2002-06-20 2004-01-08 Swg Schraubenwerk Gaisbach Gmbh Wood screw and method for its manufacture
AU2010200536B2 (en) * 2010-02-12 2016-09-01 Illinois Tool Works Inc. Self-drilling screw
ITTV20120113A1 (en) * 2012-06-12 2013-12-13 Scarpa Calzaturificio Spa SKI BOOT

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2350346A (en) * 1943-04-14 1944-06-06 Clifford R Gaskell Self-tapping screw
FR1440812A (en) * 1965-04-22 1966-06-03 Visserie Boulonnerie Japy Soc Screws in particular for panels made of reconstituted material
GB1233175A (en) * 1967-07-10 1971-05-26
ES182479Y (en) * 1972-03-15 1974-04-01 SCREW FOR WOOD.
US3937119A (en) * 1974-12-23 1976-02-10 Illinois Tool Works, Inc. Masonry anchor device
DE3003280A1 (en) * 1980-01-30 1981-08-06 Frank 5758 Fröndenberg Knoche Enhanced grip self tapping screw - has twin threads with same pitch and different thread thickness
FR2526498B1 (en) * 1982-05-10 1986-01-03 Canalisations Ste Gle LYRE FOR QUICK FIXING OF TUBULAR PROFILES IN FRIABLE MATERIALS

Also Published As

Publication number Publication date
EP0161250A1 (en) 1985-11-21
IT8368312A0 (en) 1983-12-16
HK77787A (en) 1987-10-30
WO1984002380A1 (en) 1984-06-21
NO842746L (en) 1984-07-05
GB2131907B (en) 1986-10-29
GB2131907A (en) 1984-06-27
KR840007454A (en) 1984-12-07
ES285333Y (en) 1989-08-01
SG51387G (en) 1987-08-28
ZA839333B (en) 1984-08-29
IT8354049V0 (en) 1983-12-16
NZ206599A (en) 1985-08-16
GB8331727D0 (en) 1984-01-04

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