Nice Heavy Duty Clamps: The mast clamps are made of zinc-plated iron with anti-rust coating finish, prevent rusting in outdoor rainwater.
The V-jaw brackets are what makes the assembly so good and secure in bad weather. Using the V jam brackets with U-bolt, the clamp kit can securely hold pipes and antenna tight in place, will not budge in the wind.
Dimension: Support pipe with diameter raging from 0.98” to 2.1”/24mm-54mm
The mast clamps are suitable to mount an antenna on a pipe/ pole, or attach one pipe to another pipe to mount an outdoor antenna. Quality hardware to connect 2 different sizes of pipe together.