Bugjam's answer sounds like the business. Kushti.
I think this might be the item which is rather a lot more money via eBay from NL.
https://www.ebay.co.uk/itm/Volvo-1307452-Headlamp-reflector-anchorage-240-260-1981-1993/112048217002?hash=item1a16981baa:g:UQAAAOSw2tNbtg3 r:rk:3
f:1&frcectupt=true
When I replaced my 240 reflectors the kit from Charlton Volvo Centre included the white plastic anchorages that must I think be what you want. And they had them available separately.
Have you bought reflectors without those white plastic bits? Or would it be worth buying a pair of reflectors now and making sure the supplier includes those anchorage clips. Then whilst doing the job you can do it completely.
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