Cleats firmly secure together two flange connections for a more air tight seal. SMACNA recommends use of 6 in cleats at 15 in centers maximum for 3 in WG or less and at 12 in centers maximum for higher pressures.
All Dyn-O-Mate cleats are for use on all Dyn-O-Mate J & H flange styles|20 ga flanges for airtight duct connections|DOM-CLT is manufactured from 20 ga galvanized steel 6 in pieces
Duro Dyne SPECLINE Duct Cleat, Cleat Type: Duct Cleat, 6 in Length, 0.77 in Width, 20 ga Steel, Galvanized, Domestic