UL AND FM APPROVED 
200 PER BOX 20 LBS 
For fire sprinkler and other commercial piping 
Knurled swivel nut (3/8")design permits vertical hanger adjustment after installation. 
Electro-Galvanized steel construction

Blue plastic washer holds hanger and insert nut together

Rolled edges protect plastic pipe
Nut Retention: The knurled insert nut is "captured" in the top of the hanger. This prevents the nut from falling out during installation or while the hanger is being handled.
Easy Opening: Hanger band can still be opened wide to accommodate the pipe.
Vertical Adjustment: The knurled surface allows you to easily turn the nut by hand once it is on the threaded rod to adjust the pipe's height
Rubber and Felt lining available for copper pipe