Review on Bracket Connector Aluminum Extrusion Profile by Bobby Montoya

Includes four corner connectors. Each connector has four connecting "ribs" (as I call them). The single rib attachment points fit perfectly into the hasp, as does the double rib side. Compare this to the 3-Way Angle Bracket Connectors included in the Mardatt 230 Piece Aluminum Profile Connector Kit. 2020 Series with Angle Bracket” (ASIN B098F89XRV). That being said, the single ribs fit their keep perfectly, but the double rib side requires a hammer (protected by a block of wood) to install the keep. No big deal I suppose as long as you don't have to remove them later.