Designed for hood and trunk applications, these stainless steel mounts go on the inside channel of your hood or trunk.  There are no visible mounting holes required.  All mounting hardware (also stainless steel) is hidden inside the hood or trunk channel.  Either mount comes complete with antenna mounting stud.  The SS-174S is a shortened version of the hood/trunk channel mount.  Most pre-1992 pick-ups and cars have a shallower hood/trunk channel.  Of course, this mount may also be used on most vehicles with a hood and/or trunk.  This bracket measures 2.2" (56cm) from the mounting base to the top of the bracket itself.  The height from the mounting base to the first bend is 1.4" (36mm) so it can be used on channels with depths up to 1.3" (33mm).