Baumatic B23 User Instructions page 15

Under side of hob
Spring Plate location points, Slide spring clip
into place making sure the hole in the plate
lines up with the hole on the underside of the
hob, fixing bracket screw will now locate in
the hole to secure the hob unit to the
underside of the work surface.
Fig 1.
Screw
Terminal Block
SEALANT
Clamp
15