Hercules Product Info 
Hercules Product IdDOM-QCLT
Product DescriptionCLEAT DUCT QD 6 IN L 0.85 IN W STL
Unit of MeasureCN
Manufacturer Info 
Manufacturer NameDuro Dyne
Brand NameDuro Dyne®
Part Number21259
Product UPC797582086590
Product DescriptionDuro Dyne® DYN-O-MATE® Quad Cleat® 21259 Quad Cleat, 6 in L x 0.85 in W, 22 ga Steel
Product Features
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.
DOMQCLT & HDQC-PLUS are compatible with Dyn-O-Mate™ J, Ductmate™ 35, CL Ward™ J, Ward™ Industries™ J, Hardcast™ flanges, TDC, TDF and TDX connections
HDQC-PLUS is recommended for high pressure, heavy duty transverse duct
Both the Quad Cleat® and Quad Cleat® plus incorporate embossed darts which help the cleat lock firmly onto the flange
Product Documents 
Document TypeDownload Link
CatalogDOM-QCLT_Catalog (pdf)
Specification SheetDOM-QCLT_Specification Sheet (pdf)
Product Specifications 
Cleat Type Quad Cleat
Length 6
Width 0.85
Material 22 ga Steel
Finish Galvanized