Tools Needed
• Drill
• Drill bits appropriate for the device and mounting style
Mounting style Drill bit sizes
Bail with included wood screws 3mm (
1
/
8
in.)
Flush for the corner of the cutout
GPSMAP 7x3: 6.5mm (
1
/
4
in.)
GPSMAP 9x3: 8mm (
5
/
16
in.)
GPSMAP 12x3 and GPSMAP 16x3: 14mm (
9
/
16
in.)
Flush with included wood screws
GPSMAP 7x3, GPSMAP 9x3, and GPSMAP 12x3: 2.3mm (
3
/
32
in.)
GPSMAP 16x3: 3.2mm (
1
/
8
in.)
Flush with included machine screws and
nut plates
All models: 3.5mm (
9
/
64
in.)
GPSMAP 7x3, GPSMAP 9x3, and GPSMAP 12x33mm (
1
/
8
in.)
GPSMAP 16x3: 6mm (
1
/
4
in.)
Flush with included machine screws and
tapped holes
GPSMAP 7x3, GPSMAP 9x3, and GPSMAP 12x3: M3 tap
GPSMAP 16x3: M4 tap
• #2 Phillips screwdriver
• Jigsaw or rotary tool
• File and sandpaper
• Marine sealant (recommended)
GPSMAP 7x3 and GPSMAP 9x3 Connector View
2