Hercules Product Info 
Hercules Product IdDDHNB
Unit of MeasureCN
Manufacturer Info 
Manufacturer NameDuro Dyne
Brand NameDuro Dyne®
Part Number21249
Product DescriptionDuro Dyne® 21249 H-Style Speed Corner With 1/4 in Nut and Bolt, Steel
Product Features
Speed Corners feature a tapered coined corner tips for fast/easy hand insertion in to the Flange eliminating the need for a tinner's hammer.
Opposing size alignment holes for aligning flange or optionally making connections using a standard 10-3/4 in ProPoint screw
Speed corner is available in specialty metals, call for pricing
Meets SMACNA rigidity class J as used in conjunction with Dyn-O-Mate™ J flange
12 ga steel
Product Documents 
Document TypeDownload Link
Specification SheetDDHNB_Specification Sheet (pdf)
CatalogDDHNB_Catalog (pdf)
Product Specifications 
Type H-Style
Accessory Type Speed Corner
Suitable For Use With H-Flange
Material Steel
Finish Galvanized
Domestic/Import Domestic
Country of Origin US