wiper assembly pivots / knurls

Will we assume it's Capri Mk1 ur talking about as Capri Mk2 or 3, or Escort or Cortina may be different ?

I'm pretty sure the pictures are correct as left and right pieces.   Originals did not have a screw. 
 
Do you need the whole unit or just the knurls that the wipes arm sits on?

Problem solved !   ..............    don't drive in the rain in any pre 1980 "collectible" ..........  just promotes rust !
 
If you must drive in the rain, and no parts can be found or made up on a lathe, consider inserting a thin "roll pin" right thru the worn out knurled piece after using commercial/heavy industrial grade Superglue or epoxy resin.
Leaving both ends of the roll-pin a little exposed by a few "thou", can help further with "anchoring" the wiper arm on the knurl.
Perish the thought, but if you're desperate enough and the parts are very worn, tapping a thread at top of pivot to hold arm on with, say a 6mm bolt with "loctite", may be further help after the above may be considered insufficient.
 
I go to incredible lengths NOT to get any of my cars wet; EVER. Water gets into crevices you have zero chance of drying, and there's your rust breeding ground. My first car that I still own since 1967, has no more rust than the little it had in 1967, as it never gets wet. It's always garaged and always covered and might get ** "dry cleaned" 4 times a year 
** (squeezed out) sponge whole body with a reputable car wash, and then clean off with Chamois (no water or detergent leaves the sponge)
I wouldnt keep doing this for decades if it didnt work

cheers boys.
 
i dont drive my car in the wet but if i go to a car meet on cloudy day and it might rain on the way back etc id like to know my wipers will function .  
 
i built my capri to drive any and every time i can .  i dont believe in storing them away and driving once every 3 months or longer.  i try and fit at least every weekend in to drive it  dont want to one day sit on death bed regretting not driving it enough , the last thing i wanted to do is go thru all that hassle of building it and driving once every 3 months  or longer . i built it to drive and enjoy 
 

I'm pretty sure if the police picked you up, ...but I only drive when its not raining ...won't cut it.
 
I haven't found my spares yet, will keep searching as time permits, they are in there somewhere.