Mounting screws must be used. Failure to do so can result in the oven falling out of the cabinet causing serious injury.
4x14 Wood Screws for Mounting (6 ea)
3x27 Wood Screws for Mounting for Flush Installation (6 ea)
4x22 Self-Tapping Screws for Cover Bracket (2 ea)
Cover Brackets for Flush Installation (2 ea)
4x10 Screws for Bottom Decorative Trim (2 ea)
Bottom Decorative Trim (1 ea)

Junction Box
Wire Nuts
3/4" (19 mm) Conduit Connector
36" (914 mm) of String

Phillips screwdriver
Flat-blade screwdriver
Tape measure
Pliers
Drill
Gloves
Observe all governing codes and ordinances.
Have the installer show you the location of the circuit breaker or fuse. Mark it for easy reference.
As when using any appliance generating heat, there are certain safety precautions you should follow.
Be sure your appliance is installed and grounded properly by a qualified installer or service technician.