CDA HC3616FR Installation, Use And Maintenance Manual page 19

If fitting the hob into a 28-40mm worktop:
The four fixing clips supplied should be used. If fitting the hob into a
thin worktop (i.e. 28mm), then we recommend using four 15x15x50mm
wooden batons in addition to the brackets (as per figs. 9 and 10).
Position the fixing brackets perpendicularly to the hob's edge and
tighten firmly.
5
15
1 6
Fig.9
1. worktop
2. screw
4. hob
5. seal
6. wooden block
Fig.10
4
2 3
285
5
1
Fig.11
1. worktop
2. screw
4. hob
5. seal
285
Fig.12
4
2 3
19