You could force wood glue into the crack and then clamp it until it sets, then pilot drill and screw to the frame.
If you replace the whole batten, pilot drill the holes first or you might split the wood again.
Blup
You don’t normally screw them down.
I was just going to replace the split part of baton
What the wife or the timber???
Andy
You don’t normally screw them down.
Just the end ones I would think?
1/4" slats held by plastic end pieces
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