Snap-fit garden hose connector with 1-inch BSP screw fitting

This is my modelling of a standard snap-fit garden hose connector, combined with a 1-inch BSP screw fitting - as often used to connect to garden water pumps.

(Note: the hex bolt for tightening was sized to match the outer diameter of the thread, and not a standard snapper size - and so it's ~33.25mm. Tighten manually or with some sort of adjustable wrench.)

Needs a standard ~11mm washer to be added in the top groove - see picture.

(If you need to check the details of the thread, this is an example [there are many] of the standard BSP sizes: https://www.v-flowsolutions.co.uk/british-pipe-threads/ )