CZ 527/BRNO FOX safety pivot plate (parts 25/26) on CZ527 instruction sheet - http://www.czub.cz/zbrojovka/cz-manu...ual-CZ-527.pdf
This is the pivot plate that sits inside the safety catch slot/recess and controls it’s locking tightness.
Don’t ask how I lost it btw!
I realise chances of locating a spare are nil, but it may be you have a bucket of parts from a destroyed rifle.
My alternative of course is to build one based on a stencil blueprint, which is fine, I just hope to avoid going that route.
Thanks for looking/helping