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A screwed end connector assembly includes a threaded connector having a conical end portion for the reception of a mating hose fitting. The connector has a flange which includes at least one arcuate, circumferentially extending slot. A nut for threaded engagement with the connector, for securing a h

A screwed end connector assembly includes a threaded connector having a conical end portion for the reception of a mating hose fitting. The connector has a flange which includes at least one arcuate, circumferentially extending slot. A nut for threaded engagement with the connector, for securing a hose end fitting to the conical portion of the connector, has a polygonal exterior. A member has an aperture for fitment over and irrotational engagement with the exterior of the nut and includes at least one hole positionable in axial register with the said slot.

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1. A screwed end connector assembly comprising: a male-threaded connector having a conical end portion for the reception of a mating hose fitting, the connector having a radially extending flange permanently affixed thereto between a pipe section portion and said male-threaded conical end portion, w

1. A screwed end connector assembly comprising: a male-threaded connector having a conical end portion for the reception of a mating hose fitting, the connector having a radially extending flange permanently affixed thereto between a pipe section portion and said male-threaded conical end portion, which flange extends radially beyond said pipe section portion and said male-threaded portion, said flange including at least one of (a) an arcuate, circumferentially extending, slot or (b) a hole;a nut configured for threaded engagement with the threaded connector to secure a hose end fitting to the conical portion of the connector; the nut having a polygonal exterior and a female-threaded interior; anda separable collar member having an aperture for fitment over and irrotational engagement with the polygonal exterior of the nut and including at least one of (a) a hole positionable in longitudinal axial register with said at least one slot in said flange or (b) an arcuate, circumferentially extending, slot positionable in longitudinal axial register with said at least one hole in said flanges, said slot(s) and hole(s) being configured to align and accept a rigid elongated fastening member therein to secure said collar member to said flange at an arbitrary corresponding rotational position of the nut thereby also restraining said nut from further rotational movement with respect to said threaded connector. 2. An assembly according to claim 1 in which the aperture is a central polygonal aperture conforming in shape to that of the polygonal exterior of the nut. 3. An assembly according to claim 2 in which the flange includes multiple slots and the said collar member has multiple holes all equally spaced from a longitudinal axis of the connector. 4. An assembly according to claim 3 in which the slots and holes are such that, for any arbitrary angular position of the nut relative to the connector, at least one hole is in register with a slot. 5. An assembly according to claim 3 wherein said flange has multiple slots and said collar has multiple holes and said holes are threaded. 6. An assembly according to claim 1 wherein said at least one hole in the flange and/or collar is threaded. 7. A securing assembly for screwed hose end connectors, said assembly comprising: (a) an axially-extended threaded connector having in succession on its exterior surfaces, (i) a conical end portion, (ii) a male-threaded portion, (iii) a permanently affixed radially extending flange having at least one slot or hole therein, and (iv) flat surfaces each extending axially along a position disposed radially inwardly of said flange;(b) a nut having (i) one end configured to capture a swivel hose fitting there-within, (ii) internal female threads at an opposite end configured to engage said male-threaded portion of the connector, and (iii) a polygonal exterior surface; and(c) a separate collar member having an aperture configured to fit irrotationally over the polygonal exterior of the nut and extending in a radial direction with at least one hole or slot therein configured to mate, respectively, with said at least one slot or hole in the radially extending flange of the connector so that a rigid elongated fastener received within a hole and slot in the collar member and the flange secures said collar member to said flange at an arbitrary rotational position of the nut thereby restraining the nut from further rotational movement with respect to the threaded connector. 8. An assembly according to claim 7 wherein said at least one hole in the flange and/or collar is threaded. 9. An assembly according to claim 7 wherein said flange has multiple slots and said collar has multiple holes and said holes are threaded. 10. A screwed end connector assembly comprising: a connector member having, in sequence towards an open end, (i) opposed wrench-engaging external surfaces, (ii) a permanently affixed radially-outwardly extending flange having plural spaced-apart slots or holes therein, (iii) external male threads, and (iv) a conical end;a nut member having internal female threads which mate with the external male threads of the connector member, opposed wrench-engaging external surfaces and an interior configured to capture a swivel hose fitting therein that mates with said conical end of the connector when the female threads of the nut member are screwed onto the external male threads of the connector; anda radially-outwardly extending collar member having an interior aperture configured to irrotationally fit and slide over the wrench-engaging external surfaces of the nut member, said collar member having plural spaced-apart holes or slots therein which align with the slots or holes of the flange of the connector member when the collar member aperture is fitted and slid over the nut member into contact with the flange, wherein if the flange has slots, the collar member has holes and if the flange has holes, the collar member has slots, and the holes are threaded for an elongated fastening member to engage and secure the collar member to the flange at any relative rotational position of a tightened connection between the male and female threads.