The H 3520 casement window operator is a right handed aluminum square body type. It has a 9 in steel arm with a round disc on the tip (some older styles had a small wheel instead of a disc). The disc slides in the H 3529 casement track located on the bottom of the casement window. It is worm gear driven by a 3/8 in crank spindle. The matching crank handle that fits onto the crank spindle and installation screws are included. Mounting holes available are 3-7/8 and 4-3/4 in apart.
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Features
- 3-7/8 in and 4-3/4 in mounting holes
- Casement track may also need to be replaced
Specifications
Finish : Â Aluminum
Handle Type : Â Crank
Includes : Â Matching Crank Handle Mounting Screw
Right Hand/Left Hand : Â Right
Suitable for : Â Older Steel Framed Windows
