slot portions 58 as engagement region 52 moves into the interior of coiled tubing 46 once connector 48 is axially inserted the connector 48 and coiled tubing 46 are rotationally twisted relative to each other to move the plurality of protrusions into the generally transverse slot portions 60 after the coiled tubing 46 and connector 48 are joined through the relative axial and rotational movement a retention mechanism 70 may be used to rotationally secure the coiled tubing protrusions 68 within their corresponding bayonet slots 56 one example of retention mechanism 70 comprises an interference mechanism e g simple detents 72 see fig2 that hold protrusions 68 in transverse slot portions 60 once protrusions 68 are inserted longitudinally along longitudinal slot portions 58 and rotated into transverse slot portion 60 another example of retention mechanism 70 see fig4 comprises a snap ring e g a c ring member 74 that may be positioned within a corresponding slot 76 located for example circumferentially along midsection 50 of connector 48 c ring member 74 further comprises a transverse pin 78 that is positioned in corresponding recesses 80 82 of connector 48 and coiled tubing 46 respectively when c ring member 74 is pressed into slot 76 a variety of other retention mechanisms 70 also can be used some of which are discussed in greater detail below in the embodiment illustrated in fig2 4 each bayonet slot 56 is illustrated as having two transverse slot portions 60 for receiving corresponding pairs of protrusions 68 however the bayonet slots 56 can be designed in other configurations with.