F-connector Twist-On 7 mm with seal

F connector 7 mm for antenna and satellite

This 7 mm F connector is a screw-on connector for coax cable, commonly used in antenna and satellite installations. It is a good choice when you want a strong mechanical connection and stable signal performance to equipment such as an LNB, multiswitch, amplifier, wall outlet or SAT receiver.

O-ring seal against water and moisture

The connector features an O-ring seal in the contact face. When the connector is tightened onto the mating thread, the seal helps block moisture at the joint. This is especially useful outdoors, where water ingress can cause attenuation, corrosion and unstable reception.

For outdoor installations it is still recommended to seal the finished connection with self-amalgamating tape (self-fusing tape) after mounting, for the best long-term protection against weather.

Choosing the right size

7 mm refers to the cable diameter the connector is designed for. If you are unsure, measure the outer diameter of your coax cable or compare with your existing connectors. A correctly fitting F connector provides better shielding and reduces the risk of a loose connection.

Mounting tips

Strip the cable correctly so the centre conductor and braid do not short. Make sure the braid/shield has solid contact, and the centre conductor is straight and centered. Screw the connector fully on so it sits tight, but avoid over-tightening.

Technical details

Type: F connector, screw-on

Cable: For 7 mm coax cable

Sealing: O-ring in the contact face

Use: Antenna and satellite, also suitable for outdoor use (recommended to seal with self-amalgamating tape)

Package contents

1 x 7 mm F connector with O-ring

If you want a reliable connection for antenna or satellite coax, this 7 mm F connector with O-ring is a simple and robust choice for new installs and replacements.