- 21731.1Â – shiny polished chrome finish bulb end window fastener.
- Traditional heavy quality design.
- Suitable for use on weather stripped (draught proofed) timber windows.
- This casement fastener is designed to be fixed on the side of the window and is the handle used to keep the window closed.
- This fastener is reversible so can be used on windows hung on the left or right.
Base Material
- Brass
Finish
- Polished chrome – (shiny finish).
Dimensions

- Back Plate – Height – 60mm x Width – 16mm
- Handle Length – 102mm
- Tag Length – 17mm
- Step Distance – 8mm
- Mortice Plate – Height – 72mm x Width – 15mm
- Hook Plate – Height – 60mm x Width – 15mm
Important Info Before You Buy
- Suitable for wooden windows.
- Comes supplied with mortice plate and hook plate.
- For standard outward opening windows the mortice plate is used.
- For double windows or where the window sits flush with the frame the hook plate is used.
- Suitable for use on weather stripped windows.
- Matching window stay to open and close the window also available.









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