Casement Window Operator Broken Grub Screw

Thanks for posting. If that worm gear breaks, then the entire operator has broken down and needs to be replaced. Take a look at our 39-253LB and 39-253RB Encore Operators. Carefully compare the dimensions to your old hardware and see if they match what you need. For new folding handles & covers, see our 39-375 and 39-376.