13 Ft Antenna Coax Cable with 3/8 NMO Mount, upgraded with durable cabling and a nickel-plated brass NMO mount, is superior for secure, weather-tight connections. This popular 13' NMO cable mount option has a crimped NMO connection, offering reliability and durability. This cable functions for VHF and UHF applications and requires a 3/8in thread hole. For mounting applications on a thicker roof up to a 1/2in thick, a thicker NMO mount is effective. Over-tightening of the NMO nut or antenna to the NMO connector is not advisable.