Longer Mounting stud for the SM Series antenna - 2 inch stud length - Add costs to standard SM Series Antennas.
SM=SP186
SM=SP186
MobileMark
Antenna > Accessory
$
$50.40
https://5gstore.com/product/15614_longer_mounting_stud_for_the_sm_series_antenna_2_inch_stud_length_add_costs_to_standard_sm_series_antennas.html