US3425313A - Protective and locking cap for socket-head cap screws - Google Patents

Protective and locking cap for socket-head cap screws Download PDF

Info

Publication number
US3425313A
US3425313A US592196A US3425313DA US3425313A US 3425313 A US3425313 A US 3425313A US 592196 A US592196 A US 592196A US 3425313D A US3425313D A US 3425313DA US 3425313 A US3425313 A US 3425313A
Authority
US
United States
Prior art keywords
cap
head
screw
socket
counterbore
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 - Lifetime
Application number
US592196A
Inventor
Joseph P Villo
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.)
SPS Technologies LLC
Original Assignee
Standard Pressed Steel Co
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 Standard Pressed Steel Co filed Critical Standard Pressed Steel Co
Application granted granted Critical
Publication of US3425313A publication Critical patent/US3425313A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/002—Measures against loss of bolts, nuts or pins
    • 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
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/14—Cap nuts; Nut caps or bolt caps
    • 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
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/919—Screw having driving contacts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/955—Locked bolthead or nut
    • Y10S411/974—Side lock
    • Y10S411/984—Longitudinal

Definitions

  • This invention relates to a cap which fits over the head of counterbored socket-head cap screws and which serves as a frictional lock between the cap screw and the counterbore and also closes the counterbore and the socket to the entry of moisture and other foreign substances.
  • FIGURE 1 is a transverse sectional view through a cap embodying features of the present invention mounted on a counterbored socket-head cap screw;
  • FIGURE 2 is a view similar to FIGURE 1 but showing the end of a wrench inserted through the top of a cap to sever the plug therein and press it into the socket in the screw.
  • FIGURE 1 shows an illustrative cap, generally designated 10, which includes a circular top 12 with a tubular skirt 14 projecting perpendicularly from the edge of the top 12.
  • the inner surface of the skirt 14 frictionally engages the sides of the head 16 of the socket-head cap screw, generally designated 18, while the outer, generally cylindrical surface of the skirt 14 frictionally engages the side walls of the counterbore 20.
  • the skirt serves as a frictional lock to resist unintentional loosening of the screw 18.
  • the outer surface of the skirt 14- has a length not greater than the depth of the counterbore 20, and the inner surface of the skirt 14 has a depth not greater than the length of the head 16 of the screw, 50 the cap can be pressed into the counter-bore 20 to the point where the outer surface of the top 12 is flush with the adjacent surface 22 of the part in which the counterbore is formed.
  • the thickness of the top 12 is substantially equal to the difference between the length of the head 16 of the screw and the depth of the counterbore 20, so that when the inner surface of the top 12 engages the end of the head 16 of the screw, the outer surface of the top 12 is flush with the adjacent surface 22.
  • the cap 10 is'readily installed by placing it with the skirt 14 overlying the annular space between the head 16 and the sidewall of the counterbore 20 and forcing it into position, for example, by a hammer blow.
  • the head 16 of the cap screw 18 is conventionally formed with knurling 16a around its side, and the adjacent edge of this knurling is conventionally spaced a short distance from the end of the head 16 to leave a narrow, unknurled band 16b extending around the sides of the head adjacent its end.
  • This unknurled band 16b conventionally has a slightly smaller diameter than the knurled portion 16a, and this facilitates insertion of the edge of the skirt 14 of the cap into the space between the head 16 of the screw and the sidewall of the counterbore 20.
  • the inner surface of the skirt 14 may be ribbed to complement and mesh with the knurling 1611, not only to facilitate insertion of the cap 10 but also to enhance its locking function.
  • the cap 10 closes off both the socket 16c in the head of the screw and the space of the counterbore not occupied by the head 16 of the screw, thus preventing the ingress of moisture and other foreign materials and not only protecting the screw against rust and corrosion but also greatly facilitating cleaning of the equipment and maintenance of sanitary conditions.
  • the top 12 of the cap is provided with a scribed circle which defines around, centrally located, severable plug 12b which overlies and is generally coextensive with the socket 16c in the head 16 of the screw.
  • the end 24a of a wrench 24 can be forcibly pressed against the plug 12b to sever it from the remainder of the top 12 and push it into the bottom of the socket 160, thus permitting the wrench to enter into and engage the socket to turn the screw.
  • This reduces the depth of the socket 160 which is available for engagement by the wrench 24 and limits to some extent the torque which can be applied.
  • the plug 12b may be completely removed, for example by pressing inwardly at one side of the plug and causing the other side to pivot outwardly where it can be gripped and the plug pulled away from the cap to expose the socket 160.
  • the cap 10 may suitably be made of any material having at least a slight degree of resiliency to furnish the desired locking and sealing action while accommodating a certain tolerance in the shape or dimensions of the screw 18 and counterbore 20.
  • the cap may be made of metal, preferably a metal which is softer than that of the screw 18 and the part of the equipment on which it is mounted, so that neither the screw nor the equipment will be scored or otherwise damaged as the cap is forced into position.
  • the cap may be made of a synthetic polymer, for example, such as n ylon, polyethylene, polystyrene, vinyl chloride, vinylidene chloride, suitably plasticized copolymers of vinyl chloride and vinyl acetate, and other materials of similar mechanical properties.
  • a fastening element comprising:
  • said cap screw being seated in a member having a cylindrical counterbore therein, the internal diameter of said counterbore being greater than the outside diameter of the head of said cap screw and the depth of said counterbore being greater than the axial extent of said head;
  • a protective and locking cap of deformable material comprising a circular top with a tubular skirt extending perpendicularly from the edge of said top, said circular top overlying the upper surface of said head and said skirt overlying at least a portion of the axial extent of said head, said skirt having a generally cylindrical outer surface frictionally engaging the inner surface of said counterbore and an inner surface frictionally engaging the sides of the head of said cap screw and a scored line generally coextensive with the socket in the head of said cap screw defining in the center of said top a severable plug overlying said socket.
  • a fastening element as claimed in claim 2 in which said skirt has a depth approximately equal to the lenghth of the head of said cap screw and an external length approximately equal to the depth of said counterbore, whereby, when said cap is mounted flush with the surface of the object in which said counterbore is formed, the inner surface of said top substantially engages the top of said cap screw and the free edge of said skirt substantially engages the bottom of said counterbore.
  • a fastening element as claimed in claim 1 in which the inner surface of said skirt is shaped to complement the shape of the sides of the head of said cap screw.
  • a fastening element as claimed in claim 4 in which the inner surface of said skirt is ribbed to mesh with a knurled surface on the sides of the head of said cap screw.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dowels (AREA)

Description

Feb. 4, 1969 J. P. VlLLO 7 3,425,313
PROTECTIVE AND LOCKING CAP FOR SOCKET-HEAD CAP S CREWS Filed Nov. 4, 1966 IN TOR. (/OJFP 2 z A 0 United States Patent 3,425,313 PROTECTIVE AND LOCKING CAP FOR SOCKET-HEAD CAP SCREWS Joseph P. Villo, Rydal, Pa., assignor to Standard Pressed Steel Co., Jenkintown, Pa. Filed Nov. 4, 1966, Ser. No. 592,196 US. Cl. 8553 Int. Cl. F16b 15/02, 39/02 5 Claims ABSTRACT OF THE DISCLOSURE This invention relates to a cap which fits over the head of counterbored socket-head cap screws and which serves as a frictional lock between the cap screw and the counterbore and also closes the counterbore and the socket to the entry of moisture and other foreign substances.
The invention provides a. solution to two different and troublesome problems. One is the loosening of the screws due to vibration, etc. The other is the fact that moisture and foreign matter can colect in the socket of the screw or in the annular space between the head of the screw and the wall of the counterbore. For example, when the equipment is exposed to the weather, water can collect in the counterbore and be drawn by capillarity into the interface between the threads of the screw and the tapped hole, causing rust or corrosion and obstructing removal of the screw and/ or weakening the screw so that its effectiveness is reduced or destroyed or so that it will break off when it is turned. Or, where the screw is used in material handling or processing equipment, for example food mixing machinery, some of the materials being handled can get into the socket or the counterbore, making it difficult to clean the equipment and to prevent contamination of the material being processed.
The invention provides a simple, practical and inexpensive device for solving both these problems. This device, in general terms, consists of a cap including a circular top with a depending, tubular skirt which is force fitted into the annular space between the head of the screw and the wall of the counterbore, preferably but not necessarily with the outer surface of the top flush with the adjacent surface in which the counterbore is formed. The top has a score line which defines a severable central plug which overlies and is generally coextensive with the socket so that it may be removed, for example by pressing the end of the wrench against it, to permit the wrench to enter into and engage the socket for adjusting or removing the screw.
In the drawings:
FIGURE 1 is a transverse sectional view through a cap embodying features of the present invention mounted on a counterbored socket-head cap screw; and
FIGURE 2 is a view similar to FIGURE 1 but showing the end of a wrench inserted through the top of a cap to sever the plug therein and press it into the socket in the screw.
FIGURE 1 shows an illustrative cap, generally designated 10, which includes a circular top 12 with a tubular skirt 14 projecting perpendicularly from the edge of the top 12. The inner surface of the skirt 14 frictionally engages the sides of the head 16 of the socket-head cap screw, generally designated 18, while the outer, generally cylindrical surface of the skirt 14 frictionally engages the side walls of the counterbore 20. Thus the skirt serves as a frictional lock to resist unintentional loosening of the screw 18.
Preferably the outer surface of the skirt 14- has a length not greater than the depth of the counterbore 20, and the inner surface of the skirt 14 has a depth not greater than the length of the head 16 of the screw, 50 the cap can be pressed into the counter-bore 20 to the point where the outer surface of the top 12 is flush with the adjacent surface 22 of the part in which the counterbore is formed. Also preferably, the thickness of the top 12 is substantially equal to the difference between the length of the head 16 of the screw and the depth of the counterbore 20, so that when the inner surface of the top 12 engages the end of the head 16 of the screw, the outer surface of the top 12 is flush with the adjacent surface 22.
After the screw 18 is in place, the cap 10 is'readily installed by placing it with the skirt 14 overlying the annular space between the head 16 and the sidewall of the counterbore 20 and forcing it into position, for example, by a hammer blow.
The head 16 of the cap screw 18 is conventionally formed with knurling 16a around its side, and the adjacent edge of this knurling is conventionally spaced a short distance from the end of the head 16 to leave a narrow, unknurled band 16b extending around the sides of the head adjacent its end. This unknurled band 16b conventionally has a slightly smaller diameter than the knurled portion 16a, and this facilitates insertion of the edge of the skirt 14 of the cap into the space between the head 16 of the screw and the sidewall of the counterbore 20.
The inner surface of the skirt 14 may be ribbed to complement and mesh with the knurling 1611, not only to facilitate insertion of the cap 10 but also to enhance its locking function.
The cap 10 closes off both the socket 16c in the head of the screw and the space of the counterbore not occupied by the head 16 of the screw, thus preventing the ingress of moisture and other foreign materials and not only protecting the screw against rust and corrosion but also greatly facilitating cleaning of the equipment and maintenance of sanitary conditions.
The top 12 of the cap is provided with a scribed circle which defines around, centrally located, severable plug 12b which overlies and is generally coextensive with the socket 16c in the head 16 of the screw. As shown in FIGURE 2, when it is desired to remove the screw 18, the end 24a of a wrench 24 can be forcibly pressed against the plug 12b to sever it from the remainder of the top 12 and push it into the bottom of the socket 160, thus permitting the wrench to enter into and engage the socket to turn the screw. This, of course, reduces the depth of the socket 160 which is available for engagement by the wrench 24 and limits to some extent the torque which can be applied. Alternatively, where higher torque is required, the plug 12b may be completely removed, for example by pressing inwardly at one side of the plug and causing the other side to pivot outwardly where it can be gripped and the plug pulled away from the cap to expose the socket 160.
The cap 10 may suitably be made of any material having at least a slight degree of resiliency to furnish the desired locking and sealing action while accommodating a certain tolerance in the shape or dimensions of the screw 18 and counterbore 20. For example, the cap may be made of metal, preferably a metal which is softer than that of the screw 18 and the part of the equipment on which it is mounted, so that neither the screw nor the equipment will be scored or otherwise damaged as the cap is forced into position. Alternatively, the cap may be made of a synthetic polymer, for example, such as n ylon, polyethylene, polystyrene, vinyl chloride, vinylidene chloride, suitably plasticized copolymers of vinyl chloride and vinyl acetate, and other materials of similar mechanical properties.
It will thus be appreciated that the present invention provides a simple, practical and inexpensive device by which the aforementioned and other apparent desirable objective have been achieved. However it should be emphasized that the particular embodiment of the invention which is described herein and shown in the accompanying drawings is intended as merely illustrative of the principles of the invention rather than as restrictive of the scope thereof, which is defined and limited only by the appended claims.
What is claimed is:
1. A fastening element comprising:
a cap screw having a wrench receiving socket therein;
said cap screw being seated in a member having a cylindrical counterbore therein, the internal diameter of said counterbore being greater than the outside diameter of the head of said cap screw and the depth of said counterbore being greater than the axial extent of said head;
a protective and locking cap of deformable material comprising a circular top with a tubular skirt extending perpendicularly from the edge of said top, said circular top overlying the upper surface of said head and said skirt overlying at least a portion of the axial extent of said head, said skirt having a generally cylindrical outer surface frictionally engaging the inner surface of said counterbore and an inner surface frictionally engaging the sides of the head of said cap screw and a scored line generally coextensive with the socket in the head of said cap screw defining in the center of said top a severable plug overlying said socket.
2. A fastening element as claimed in claim 1 in which said skirt has an internal depth not greater than the length of the head of said cap screw and an external length not greater than the depth of said counterbore, whereby said cap can be mounted with said top substantially flush with the adjacent surface in which said counterbore is formed. 7
3. A fastening element as claimed in claim 2 in which said skirt has a depth approximately equal to the lenghth of the head of said cap screw and an external length approximately equal to the depth of said counterbore, whereby, when said cap is mounted flush with the surface of the object in which said counterbore is formed, the inner surface of said top substantially engages the top of said cap screw and the free edge of said skirt substantially engages the bottom of said counterbore.
4. A fastening element as claimed in claim 1 in which the inner surface of said skirt is shaped to complement the shape of the sides of the head of said cap screw.
5. A fastening element as claimed in claim 4 in which the inner surface of said skirt is ribbed to mesh with a knurled surface on the sides of the head of said cap screw.
References Cited UNITED STATES PATENTS 3,044,584 7/1962 Thompson --45 3,156,369 11/1964 Bowes et al. 215-42 3,298,272 l/ 1967 Henderson 85-53 CARL W. TOMLIN, Primary Examiner.
R. S. BRITTS, Assistant Examiner.
US. Cl. X.R. 15 1--S4
US592196A 1966-11-04 1966-11-04 Protective and locking cap for socket-head cap screws Expired - Lifetime US3425313A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US59219666A 1966-11-04 1966-11-04

Publications (1)

Publication Number Publication Date
US3425313A true US3425313A (en) 1969-02-04

Family

ID=24369706

Family Applications (1)

Application Number Title Priority Date Filing Date
US592196A Expired - Lifetime US3425313A (en) 1966-11-04 1966-11-04 Protective and locking cap for socket-head cap screws

Country Status (1)

Country Link
US (1) US3425313A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628816A (en) * 1970-02-02 1971-12-21 Ford Motor Co Sleeve nut connector
US3858998A (en) * 1972-08-22 1975-01-07 Folke Larsson Manhole frame
US3885492A (en) * 1973-11-16 1975-05-27 Elco Industries Inc Capped fastener
FR2449833A1 (en) * 1979-02-23 1980-09-19 Citroen Sa Dust cap for wheel bearing - is push fit in bore mouth has flanged shallow circular cup with curved retaining tongue on base
US4320693A (en) * 1977-11-03 1982-03-23 Schmelzer Corporation Adjustment for carburetor control devices
US4394096A (en) * 1981-08-27 1983-07-19 Menasha Corporation Attachment system for plastic liners
WO1985002447A1 (en) * 1983-11-23 1985-06-06 Carolina Moldings, Inc. Anti-tamper fastener shielding device
US4611379A (en) * 1983-08-01 1986-09-16 H&E Machine Company Method of removably securing a security threaded fastener apparatus
US4630168A (en) * 1985-12-16 1986-12-16 The Boeing Company Lightning protection fastener
US4818476A (en) * 1988-02-25 1989-04-04 Westinghouse Electric Corp. Reactor vessel stud thread protector
EP0803656A1 (en) * 1996-04-22 1997-10-29 Ina Wälzlager Schaeffler Kg Hole closure device
US6315485B1 (en) 1999-08-13 2001-11-13 Northrop Grumman Corporation Low observable aircraft fastener treatment
US20040191009A1 (en) * 2003-03-26 2004-09-30 Ngk Spark Plug Co., Ltd. Cutter body, rotary tool, and method for assembling the rotary tool
US20070227206A1 (en) * 2006-03-28 2007-10-04 Stone George W Lock box for fasteners
US20080025815A1 (en) * 2006-07-26 2008-01-31 Lubchansky Adam B Removeable fastener recess insert and method for making same
US20090180832A1 (en) * 2008-01-10 2009-07-16 East Jordan Iron Works, Inc. Manhole system
FR3017831A1 (en) * 2014-02-26 2015-08-28 Peugeot Citroen Automobiles Sa VEHICLE SEAT ADJUSTMENT SLIDER, DEFLECTOR FOR SUCH A SLIDER AND VEHICLE THUS EQUIPPED
US11795989B2 (en) 2019-10-15 2023-10-24 Infastech Intellectual Properties Pte Ltd Fastener assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044584A (en) * 1959-05-27 1962-07-17 Harris Foundry & Machine Co Hollow cap screw assembly with displaceable plug
US3156369A (en) * 1962-09-19 1964-11-10 Ethicon Inc Bicameral container
US3298272A (en) * 1964-10-20 1967-01-17 Harold P Henderson Protective and decorative cap for screw and bolt heads

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044584A (en) * 1959-05-27 1962-07-17 Harris Foundry & Machine Co Hollow cap screw assembly with displaceable plug
US3156369A (en) * 1962-09-19 1964-11-10 Ethicon Inc Bicameral container
US3298272A (en) * 1964-10-20 1967-01-17 Harold P Henderson Protective and decorative cap for screw and bolt heads

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628816A (en) * 1970-02-02 1971-12-21 Ford Motor Co Sleeve nut connector
US3858998A (en) * 1972-08-22 1975-01-07 Folke Larsson Manhole frame
US3885492A (en) * 1973-11-16 1975-05-27 Elco Industries Inc Capped fastener
US4320693A (en) * 1977-11-03 1982-03-23 Schmelzer Corporation Adjustment for carburetor control devices
FR2449833A1 (en) * 1979-02-23 1980-09-19 Citroen Sa Dust cap for wheel bearing - is push fit in bore mouth has flanged shallow circular cup with curved retaining tongue on base
US4394096A (en) * 1981-08-27 1983-07-19 Menasha Corporation Attachment system for plastic liners
US4611379A (en) * 1983-08-01 1986-09-16 H&E Machine Company Method of removably securing a security threaded fastener apparatus
WO1985002447A1 (en) * 1983-11-23 1985-06-06 Carolina Moldings, Inc. Anti-tamper fastener shielding device
US4621230A (en) * 1983-11-23 1986-11-04 Carolina Moldings, Inc. Anti-tamper fastener shielding device
US4630168A (en) * 1985-12-16 1986-12-16 The Boeing Company Lightning protection fastener
US4818476A (en) * 1988-02-25 1989-04-04 Westinghouse Electric Corp. Reactor vessel stud thread protector
EP0803656A1 (en) * 1996-04-22 1997-10-29 Ina Wälzlager Schaeffler Kg Hole closure device
US6315485B1 (en) 1999-08-13 2001-11-13 Northrop Grumman Corporation Low observable aircraft fastener treatment
US20040191009A1 (en) * 2003-03-26 2004-09-30 Ngk Spark Plug Co., Ltd. Cutter body, rotary tool, and method for assembling the rotary tool
US7163360B2 (en) * 2003-03-26 2007-01-16 Ngk Spark Plug Co., Ltd. Cutter body, rotary tool, and method for assembling the rotary tool
US20070227206A1 (en) * 2006-03-28 2007-10-04 Stone George W Lock box for fasteners
US20080025815A1 (en) * 2006-07-26 2008-01-31 Lubchansky Adam B Removeable fastener recess insert and method for making same
US9086085B2 (en) * 2006-07-26 2015-07-21 The Boeing Company Removeable fastener recess insert and method for making same
US20090180832A1 (en) * 2008-01-10 2009-07-16 East Jordan Iron Works, Inc. Manhole system
US7726903B2 (en) * 2008-01-10 2010-06-01 East Jordan Iron Works, Inc. Manhole system
FR3017831A1 (en) * 2014-02-26 2015-08-28 Peugeot Citroen Automobiles Sa VEHICLE SEAT ADJUSTMENT SLIDER, DEFLECTOR FOR SUCH A SLIDER AND VEHICLE THUS EQUIPPED
WO2015128562A1 (en) * 2014-02-26 2015-09-03 Peugeot Citroen Automobiles Sa Vehicle seat adjustment track, deflector intended for such a track and vehicle thus equipped
US11795989B2 (en) 2019-10-15 2023-10-24 Infastech Intellectual Properties Pte Ltd Fastener assembly

Similar Documents

Publication Publication Date Title
US3425313A (en) Protective and locking cap for socket-head cap screws
US3298272A (en) Protective and decorative cap for screw and bolt heads
US3104681A (en) Plastic closures for protective use
US4302035A (en) One piece electrical connector
US3351116A (en) Lock washer
US6471457B2 (en) Screw retention device having a hook
US5244323A (en) Self locking set screw
US3384141A (en) Composite screw
US3408092A (en) Single piece connector for flexible hosing
US3255795A (en) Self-locking nut
US4152968A (en) Fastening plug
US5120169A (en) Blind fastener
US3929250A (en) Gasoline tank plug
US3357293A (en) Sealed self-threading cap nut
US3878758A (en) Releasable fastener
US2416548A (en) Boiler plug
JPS6123929Y2 (en)
JPS601164Y2 (en) Tightening aid for concrete formwork
US904956A (en) Nut-lock.
GB2128282A (en) Tamperproof plug
JPH0732975Y2 (en) Screw drop prevention device
US2949141A (en) Nut with a washer secured thereto by separable means
WO1985001090A1 (en) Protective cap for bolts with nuts
EP0558013A2 (en) Fixing structure for a member to be fixed
JPH056214U (en) Tapping screw