US2464405A - Method of attaching a pin type terminal to a base - Google Patents

Method of attaching a pin type terminal to a base Download PDF

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Publication number
US2464405A
US2464405A US546094A US54609444A US2464405A US 2464405 A US2464405 A US 2464405A US 546094 A US546094 A US 546094A US 54609444 A US54609444 A US 54609444A US 2464405 A US2464405 A US 2464405A
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United States
Prior art keywords
base
pin
pin type
attaching
terminal
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Expired - Lifetime
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US546094A
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Jr Harry V Knauf
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RCA Corp
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RCA Corp
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/30—Manufacture of bases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • H01R13/415—Securing in non-demountable manner, e.g. moulding, riveting by permanent deformation of contact member
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
    • Y10T29/49139—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture
    • Y10T29/4914—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture with deforming of lead or terminal
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/49147—Assembling terminal to base
    • Y10T29/49151—Assembling terminal to base by deforming or shaping
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49915—Overedge assembling of seated part

Definitions

  • This invention relates to electrical connectors of the so-called pin type and to improvements in the art of attaching such terminals to a panel, socket or other base.
  • Another and important object of the present invention is to provide an improved method of attaching a pin type connector to a support, said method being applicable to conventionalhollow type pins as well as to the solid type connector hereinafter described.
  • Still another object of the present invention is to provide an improved-connector oi the general character described and one incorporating an anchor, clamp, or the like, for securing a wire or other lead to the inner terminal thereof.
  • a pin type connector sufficiently long to extend beyond the top or inn-er (as well as the "bottom or'outer) surface of the supporting panel or base, at least the inwardly extending part of the pin being hollow and capable of being cut and distorted in the manner later described.
  • the free ends thereof v are curled outwardly and urged downwardly by the tool into contact with the base and thus serve to affix-the pin to thesaid base. Since the attaching force is applied steadily, rather than abruptly, and is exerted upon and cushioned by the curled-up metal tongues, the panel is not subject to any force capable of shattering or breaking it.
  • the parts of the walls of the pin which remain standing after the tongues are formed may serve, in accordance with the invention, as the jaws of a clamp in which a wire or other lead may be secured.
  • Figures 1, 2 and 3 are views in perspective of a wafer-type socket or base showing two pintype connectors at three successive stages of attachment
  • FIG. 4 is an elevational view, partly in section, of a panel and an alternative "solid form of pin and showing the tool used in the attachment of a pin type terminal to a panel, and
  • Figure 5 is a top plan view of the base and terminal assembly shown in Fig. 4.
  • l designates an apertured base, panel or socket having two pin type connectors 2 and 3,- respectively, which extend through the base and well beyond its top and bottom surfaces.
  • the connector which is designated 2 comprises a relativelylong but otherwise conventional hollow pin type connector formed of sheet metal, open at the top and closed at its lower end as by. means of a plug 4 constituted of solder.
  • the pin 3, on the other hand, is formed, as on a screwmachine, from rod or bar stock and has a bore 5 (see Fig. 4) which extends from the inner or top end of the pin to'a point adjacent to the level of the base I.
  • each of the pins 2 and 3 is provided with a stop or shoulder I which abuts the lower surface of the panel I when the pins are entered into the apertures with which the said base is provided.
  • the pin type connector which is here designated 3i comprises a binding post and is provided with two"e'xtra" shoulders 8 and I 1 between which a wire 13 may be wound without danger of its slipping off the end of the pin.
  • each pin which extends above the base I is hollow and the tubular wall of said portion of minal, and a pair of oppositely located rounded cut-away portions 23 which serve to curl the metal outwardly and downwardly into contact with the base I.
  • the upper surface, of the base In order to prevent the terminals from being turned, subsequent to their attachment, it is preferable to provide the upper surface, of the base with a preformed non-circular depression 25 (see Figs. 4 and within which the curledup tongues l I and it are received.
  • the oppositely located part 21 and 29 of the terminal which remain standing after the tongues l4 and I5 have been struck out, may be employed as an anchor or clamp for one or more lead wires 3
  • the present invention provides an improved method of attaching a pin type connector to a support, and that said method is applicable to conventional hollow type pins as well as to the "solid type connector.
  • steps which 5 comprise cutting a plurality of axially extendin slits from the end of the wall of said extended hollow end portion of said terminal, curling the metal between said slits downwardly through an arc of more than 180 before reaching engagement with said base and continuing said curling until said tongue is forced into engagement with said base.
  • Method of attaching a pin type terminal having'a hollow end portion at one end thereof to a base having an aperture therein and a noncircular depression about said aperture comprisingpassing said hollow end portion of said terminal through said aperture, cutting a tongue commencing at said end in the wall of the extended hollow portion of said terminal, curling said tongue downwardly from said end through an arc of more than before reaching engagement with said base and continuing 5 said curling until said tongue is forced into engagement with the bottom of said depression.

Description

March 15, 1949. H. v. KNAUF, JR 2,464,45
. METHOD OF ATTACHING A PIN 7 TYPE TERMINAL TO A BASE Filed July 22, 1944 Zfimentor HRRYV, NHLIF, JR,
attorney Patented Mar. 15, 1949 METHOD OF ATTACHING A PIN TYPE TERMINAL T BASE Harry V. Knauf, Jr., Oaklyn, N. J., assignor to Radio Corporation of America, a corporation of Delaware Application July 22, 1944, Serial No. 546,094
The invention covered herein may be manufactured and used by or for the Government of the United States for any governmental purposes without payment to me or assigns of any royalty thereon.
This invention relates to electrical connectors of the so-called pin type and to improvements in the art of attaching such terminals to a panel, socket or other base.
It may be said, generally, thathollow pin type connectors, especially those made from sheet metal, are less costly to manufacture than solid connectors of similar dimensions made from rod or bar stock. The advantage of low initial costenjoyed by the hollow pin is, however, offset to a considerable extent by the expense of entering and soldering a lead therein and in rounding and polishing the soldered end of the assembly. Furthermore, hollow pins are not as strong as solid pins and simply cannot be used in certain installations. On the other hand, pins made from rod or 'bar stock are diihcult to attach to a panel or other base andthe riveting or peening force heretofore used in their attachment may shatter the support to which the pins are being afilxed. This latter difliculty is also frequently encountered in the attachment, by
day methods, of hollow pin type connectoi's.
Accordinglyv it is among the objects of the present ll'lVeIltlUf; to provide a pin type connector which shall possess the strength and other advantages of a solid pin, and one nevertheless capable of being aflixed to a socket, panel or other base without danger of shattering the said support.
Another and important object of the present invention is to provide an improved method of attaching a pin type connector to a support, said method being applicable to conventionalhollow type pins as well as to the solid type connector hereinafter described.
Still another object of the present invention is to provide an improved-connector oi the general character described and one incorporating an anchor, clamp, or the like, for securing a wire or other lead to the inner terminal thereof.
The foregoing and other objects are achieved in accordance with the invention by the provision of a pin type connector sufficiently long to extend beyond the top or inn-er (as well as the "bottom or'outer) surface of the supporting panel or base, at least the inwardly extending part of the pin being hollow and capable of being cut and distorted in the manner later described.
4 Claims. (Cl. 29-15555) In attaching the pin' to a panel or other base, a
tool of special design is pressed down on the hollow end of the pin and cuts two oppositely located strips or tongues in its tubular wall. As
these tongues are formed, the free ends thereof v are curled outwardly and urged downwardly by the tool into contact with the base and thus serve to affix-the pin to thesaid base. Since the attaching force is applied steadily, rather than abruptly, and is exerted upon and cushioned by the curled-up metal tongues, the panel is not subject to any force capable of shattering or breaking it. The parts of the walls of the pin which remain standing after the tongues are formed may serve, in accordance with the invention, as the jaws of a clamp in which a wire or other lead may be secured.
Certain preferred details of construction and procedure together with other objects and ,ad-' vantages will be apparent and the invention itself will be best understood by reference to the following specification and to the accompanying drawing, wherein:
Figures 1, 2 and 3 are views in perspective of a wafer-type socket or base showing two pintype connectors at three successive stages of attachment,
- Figure 4 is an elevational view, partly in section, of a panel and an alternative "solid form of pin and showing the tool used in the attachment of a pin type terminal to a panel, and
Figure 5 is a top plan view of the base and terminal assembly shown in Fig. 4.
In the drawing, wherein like reference characters designate the same or corresponding parts in all figures, l designates an apertured base, panel or socket having two pin type connectors 2 and 3,- respectively, which extend through the base and well beyond its top and bottom surfaces. The connector which is designated 2 comprises a relativelylong but otherwise conventional hollow pin type connector formed of sheet metal, open at the top and closed at its lower end as by. means of a plug 4 constituted of solder. The pin 3, on the other hand, is formed, as on a screwmachine, from rod or bar stock and has a bore 5 (see Fig. 4) which extends from the inner or top end of the pin to'a point adjacent to the level of the base I. Each of the pins 2 and 3 is provided with a stop or shoulder I which abuts the lower surface of the panel I when the pins are entered into the apertures with which the said base is provided. In the embodiment of the invention shown in Fig. 4, the pin type connector, which is here designated 3i comprises a binding post and is provided with two"e'xtra" shoulders 8 and I 1 between which a wire 13 may be wound without danger of its slipping off the end of the pin.
As previously indicated, at least that portion of each pin which extends above the base I is hollow and the tubular wall of said portion of minal, and a pair of oppositely located rounded cut-away portions 23 which serve to curl the metal outwardly and downwardly into contact with the base I.
Since the only force applied to the socket or base I by the tool i1 is cushioned by the springlike curled-metal tongues l4 and it, it is apparent that there is no danger of shattering the base in attaching the terminals thereto.
In order to prevent the terminals from being turned, subsequent to their attachment, it is preferable to provide the upper surface, of the base with a preformed non-circular depression 25 (see Figs. 4 and within which the curledup tongues l I and it are received.
As shown in Fig. 3, the oppositely located part 21 and 29 of the terminal which remain standing after the tongues l4 and I5 have been struck out, may be employed as an anchor or clamp for one or more lead wires 3|. These leads 3! may be secured to the terminalsby pinching the upstanding arms or jaws 21 and 29 together.
It will now be apparent that the present invention provides an improved method of attaching a pin type connector to a support, and that said method is applicable to conventional hollow type pins as well as to the "solid type connector.
What is claimed is:
' 1. In the attachment, to a base, of a pin type terminal having an end portion which extends beyond said base, the steps which comprise cutting a tongue from the end of said extended portion of said terminal, curling said tongue downwardly from said and through an arc of more than 180 before reaching engagement with said base and continuing said curling until said 14 tongue is forced into engagement with said base. 2. In the attachment, to a base, of a pin type metal terminal having a hollow end portion which extends beyond said base. the steps which 5 comprise cutting a plurality of axially extendin slits from the end of the wall of said extended hollow end portion of said terminal, curling the metal between said slits downwardly through an arc of more than 180 before reaching engagement with said base and continuing said curling until said tongue is forced into engagement with said base. Y
3. In the attachment. to a base. of a pin type terminal having a hollow end' portion which 15 extends beyond said base, the steps which comprise cutting a tongue commencing at said end in the wall of said extended hollow portion of said terminal and simultaneously curling said tongue downwardly from said end through an are of more than-180 before reaching engagement with said base and continuing said curling until said tongue is forced into engagement with saidbase. 1-
4. Method of attaching a pin type terminal having'a hollow end portion at one end thereof to a base having an aperture therein and a noncircular depression about said aperture, said method comprisingpassing said hollow end portion of said terminal through said aperture, cutting a tongue commencing at said end in the wall of the extended hollow portion of said terminal, curling said tongue downwardly from said end through an arc of more than before reaching engagement with said base and continuing 5 said curling until said tongue is forced into engagement with the bottom of said depression.
. HARRY V. KNAUF, JR.
REFERENCES CITED The following references are of record in the file of this patent:
, UNITED STATES PATENTS Number
US546094A 1944-07-22 1944-07-22 Method of attaching a pin type terminal to a base Expired - Lifetime US2464405A (en)

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Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623091A (en) * 1950-05-10 1952-12-23 Rittenhouse Company Inc Mounting for electrical units
US2664553A (en) * 1950-09-14 1953-12-29 Epstein Hirsch Soldering terminal for electrical wires
US2673336A (en) * 1950-01-17 1954-03-23 Cinch Mfg Corp Unitary tubular electrical contact and wiring terminal therefor
US2681439A (en) * 1949-06-20 1954-06-15 Aircraft Marine Prod Inc Insulated electrical connector
US2707274A (en) * 1951-06-27 1955-04-26 Itt Electrical terminal and terminal assembly
US2721911A (en) * 1950-10-10 1955-10-25 Louis J Patla Rotary switch
US2724098A (en) * 1952-04-09 1955-11-15 Thomas & Betts Corp Electric connectors
US2774051A (en) * 1953-02-16 1956-12-11 Western Electric Co Electrical unit
US2781144A (en) * 1950-04-11 1957-02-12 Grigsby Allison Company Inc Riveting apparatus
US2782491A (en) * 1952-05-05 1957-02-26 Gen Motors Corp Method of making an electrical connection
US2850712A (en) * 1956-02-02 1958-09-02 New York Trust Company Means for connecting electrodes to conductors
US2856593A (en) * 1954-06-21 1958-10-14 United Shoe Machinery Corp Connector joint and method of making same
US2904431A (en) * 1954-08-26 1959-09-15 Rca Corp Electrographotographic charging means
US2929046A (en) * 1950-10-20 1960-03-15 Amp Inc Electrical connector
US2931532A (en) * 1955-04-25 1960-04-05 Townsend Company Rivets and method of riveting
US2969521A (en) * 1956-11-20 1961-01-24 Ray R Scoville Electrical wire clips and female receptacle for receiving wire, tube or transistor prongs
US3020636A (en) * 1956-10-05 1962-02-13 Belling & Lee Ltd Method and apparatus for slitting tubes
US3025591A (en) * 1958-12-15 1962-03-20 Ampex Wire-fastening method
US3103738A (en) * 1959-09-30 1963-09-17 Rca Corp Method of assembling a heater mount
US3106436A (en) * 1961-09-06 1963-10-08 Transistor Devices Inc Electrical terminal and method of making same
US3137061A (en) * 1960-06-13 1964-06-16 Rca Corp Apparatus for assembling wires
US3189980A (en) * 1960-06-13 1965-06-22 Rca Corp Apparatus for and method of fabricating electron tube stems
US3257584A (en) * 1966-06-21 Quick assembling and disassembling circuit system
US3319324A (en) * 1961-06-15 1967-05-16 Martin Marietta Corp Tooling arrangement for installing channel flanged eyelets in printed circuit boards
US3323094A (en) * 1964-07-29 1967-05-30 Markite Corp Potentiometer terminal
US3369830A (en) * 1966-12-30 1968-02-20 Regina Corp Tubular handle connection
US3471825A (en) * 1967-03-20 1969-10-07 Amp Inc Coax patch panel in insulative housing members therefor
US3649059A (en) * 1969-11-28 1972-03-14 John W Davidson Reinforcement clip
US3691656A (en) * 1966-03-30 1972-09-19 Mitsuaka Mochizuki Method of making a joint
US3760496A (en) * 1970-07-17 1973-09-25 Amp Inc Panel mounted electrical terminal
US4090771A (en) * 1975-07-18 1978-05-23 Hughes Aircraft Company Contact assembly with rotational lock for wire wrap termination

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1656856A (en) * 1926-12-20 1928-01-17 Bead Chain Mfg Co Electric appliance having pin contacts and method of manufacturing the same
US1702158A (en) * 1925-09-14 1929-02-12 Bead Chain Mfg Co Contact of the pin type
US1831207A (en) * 1930-07-02 1931-11-10 Arthur H Swett Tag structure
US1900099A (en) * 1929-05-25 1933-03-07 Westinghouse Lamp Co Method of securing contact pins in radiotube bases
US1976776A (en) * 1932-01-07 1934-10-16 United Shoe Machinery Corp Eyelet
US2087969A (en) * 1936-08-17 1937-07-27 United Shoe Machinery Corp Method and tool for roll-clenching eyelets
US2125713A (en) * 1936-02-18 1938-08-02 Hugh H Eby Inc Electrical terminal prong with integral lug
US2178187A (en) * 1937-11-11 1939-10-31 Joseph E Sake Grommet securing tool

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1702158A (en) * 1925-09-14 1929-02-12 Bead Chain Mfg Co Contact of the pin type
US1656856A (en) * 1926-12-20 1928-01-17 Bead Chain Mfg Co Electric appliance having pin contacts and method of manufacturing the same
US1900099A (en) * 1929-05-25 1933-03-07 Westinghouse Lamp Co Method of securing contact pins in radiotube bases
US1831207A (en) * 1930-07-02 1931-11-10 Arthur H Swett Tag structure
US1976776A (en) * 1932-01-07 1934-10-16 United Shoe Machinery Corp Eyelet
US2125713A (en) * 1936-02-18 1938-08-02 Hugh H Eby Inc Electrical terminal prong with integral lug
US2087969A (en) * 1936-08-17 1937-07-27 United Shoe Machinery Corp Method and tool for roll-clenching eyelets
US2178187A (en) * 1937-11-11 1939-10-31 Joseph E Sake Grommet securing tool

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257584A (en) * 1966-06-21 Quick assembling and disassembling circuit system
US2681439A (en) * 1949-06-20 1954-06-15 Aircraft Marine Prod Inc Insulated electrical connector
US2673336A (en) * 1950-01-17 1954-03-23 Cinch Mfg Corp Unitary tubular electrical contact and wiring terminal therefor
US2781144A (en) * 1950-04-11 1957-02-12 Grigsby Allison Company Inc Riveting apparatus
US2623091A (en) * 1950-05-10 1952-12-23 Rittenhouse Company Inc Mounting for electrical units
US2664553A (en) * 1950-09-14 1953-12-29 Epstein Hirsch Soldering terminal for electrical wires
US2721911A (en) * 1950-10-10 1955-10-25 Louis J Patla Rotary switch
US2929046A (en) * 1950-10-20 1960-03-15 Amp Inc Electrical connector
US2707274A (en) * 1951-06-27 1955-04-26 Itt Electrical terminal and terminal assembly
US2724098A (en) * 1952-04-09 1955-11-15 Thomas & Betts Corp Electric connectors
US2782491A (en) * 1952-05-05 1957-02-26 Gen Motors Corp Method of making an electrical connection
US2774051A (en) * 1953-02-16 1956-12-11 Western Electric Co Electrical unit
US2856593A (en) * 1954-06-21 1958-10-14 United Shoe Machinery Corp Connector joint and method of making same
US2904431A (en) * 1954-08-26 1959-09-15 Rca Corp Electrographotographic charging means
US2931532A (en) * 1955-04-25 1960-04-05 Townsend Company Rivets and method of riveting
US2850712A (en) * 1956-02-02 1958-09-02 New York Trust Company Means for connecting electrodes to conductors
US3020636A (en) * 1956-10-05 1962-02-13 Belling & Lee Ltd Method and apparatus for slitting tubes
US2969521A (en) * 1956-11-20 1961-01-24 Ray R Scoville Electrical wire clips and female receptacle for receiving wire, tube or transistor prongs
US3025591A (en) * 1958-12-15 1962-03-20 Ampex Wire-fastening method
US3103738A (en) * 1959-09-30 1963-09-17 Rca Corp Method of assembling a heater mount
US3137061A (en) * 1960-06-13 1964-06-16 Rca Corp Apparatus for assembling wires
US3189980A (en) * 1960-06-13 1965-06-22 Rca Corp Apparatus for and method of fabricating electron tube stems
US3319324A (en) * 1961-06-15 1967-05-16 Martin Marietta Corp Tooling arrangement for installing channel flanged eyelets in printed circuit boards
US3106436A (en) * 1961-09-06 1963-10-08 Transistor Devices Inc Electrical terminal and method of making same
US3323094A (en) * 1964-07-29 1967-05-30 Markite Corp Potentiometer terminal
US3691656A (en) * 1966-03-30 1972-09-19 Mitsuaka Mochizuki Method of making a joint
US3369830A (en) * 1966-12-30 1968-02-20 Regina Corp Tubular handle connection
US3471825A (en) * 1967-03-20 1969-10-07 Amp Inc Coax patch panel in insulative housing members therefor
US3649059A (en) * 1969-11-28 1972-03-14 John W Davidson Reinforcement clip
US3760496A (en) * 1970-07-17 1973-09-25 Amp Inc Panel mounted electrical terminal
US4090771A (en) * 1975-07-18 1978-05-23 Hughes Aircraft Company Contact assembly with rotational lock for wire wrap termination

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