In this example the following fittings are used:
1a. Hinges for IPA side hung coupled sash window IPA No. 11717
or
1b. Hinges for IPA side hung coupled sash window IPA No. 11718 (with decorative finials)
2. Coupling hinges IPA No. 13231 & 13241-43
3. Casement fasteners IPA No. 21385-95
4. Casement hooks IPA No. 21370-73 & 21378-79
5. Hook catches IPA No. 21381-82
6. Support fitting IPA No. 21226
Whether to use one or the other hinge, casement fastener or hook will depend on the window profile and the dimensions. For further fittings proposals please check the IPA Catalogue on www.ipafittings.com.