Laird Technologies - Thick Plate Mount, 1/2" The Laird Technologies mobile antenna mount includes 17 feet of RG58A/U cable but connector needs to be ordered separately. Thread size is 1 1/8 inch - 18. Laird MAB series for 3/8 or 3/4 hole. For up to 1/4 thickness. Laird MABVT8 for 3/8 or 3/4 hole. For thicknesses from 1/32 to 1/2.