Garmin GPS 18 010-00321-56 User Manual
Product codes
010-00321-56
GPS 18 Technical Specifications (190-00307-00)
Rev. D
Page 10
3
MECHANICAL CHARACTERISTICS & MOUNTING
The central threaded recess accepts a metric M3 threaded bolt. The recess is approximately 4 mm deep
(4.32 +/- 0.08 mm). The following drawings show example geometries for mounting hardware in case you
wish to design your own custom mount. Figure 5 shows mounting geometry for a mount formed from steel
sheet metal that is 1.15 mm thick. Figure 7 shows similar mounting geometry for mount formed from
aluminum sheet metal that is 1.25 mm thick. Use caution when tightening the mounting bolt. Tightening
the mounting bolt can cause the mount to pull tight directly against the metal insert, not against the plastic
housing, which would tend to pull the insert out of the plastic. Figure 6 shows the dimensions of our GPS
18 Flush Mount, part number 010-10453-00.
(4.32 +/- 0.08 mm). The following drawings show example geometries for mounting hardware in case you
wish to design your own custom mount. Figure 5 shows mounting geometry for a mount formed from steel
sheet metal that is 1.15 mm thick. Figure 7 shows similar mounting geometry for mount formed from
aluminum sheet metal that is 1.25 mm thick. Use caution when tightening the mounting bolt. Tightening
the mounting bolt can cause the mount to pull tight directly against the metal insert, not against the plastic
housing, which would tend to pull the insert out of the plastic. Figure 6 shows the dimensions of our GPS
18 Flush Mount, part number 010-10453-00.
Figure 4a. GPS 18 Bottom Case Dimensions, Under Mold
Figure 4b. GPS 18 Bottom Case, Outside of Casing