i dont have sliding sash windows through rusty.
ive got tilt out windows – for the most part i can just change the handle to a locking handle but the kitchen and bedroom downstairs i dont have that luxuary 🙁
a variation on that would work now that i think about it – drill through the lower bar on the window and secure to the sill. – the key wouldnt rotate due to the glass – but i guess i could modify the key.
its two fold molly – tick the box – but if im spending money on it and looking at its ugly unelegant design all the time then id like it to serve the purpose it was designed for
well you see because my windows are in adaquate – my insurance premiums are crippling my dream of owning a sole fish farm 😉