Round ductwork is suspended from overhead supports using hanger straps held tight against the duct profile. Self-tapping hex head sheet metal screws secure the straps to the sides of the duct. Pop rivets are explicitly prohibited for this connection.
kl=mlm=ofsbqp=^iiltba HANGER STRAPS `lkpqor`qflk=pq^ka^oap ar`q=mbo=pj^`k^=es^`=ar`q e^kdbo=pfwbp=clo=olrka SELF TAPPING HEX HEAD SHEET METAL SCREWS. STRAPS TO BE TIGHT AGAINST DUCT
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