Special Features: 1.5" long folding nail fin with holes punched every 3.5" - for round top windows. The nailing flange is slit, allowing the part to be applied to a round top frame. There is a flexible flap that seals the root of the slits once the nail fin is applied. Hinge feature allows the fin to be shipped flat to the jambs and then folded into place for installation. Designed to fit 0.078" kerf.

Other Information: Hinged and Locking Nailing Fin for Round Tops

Available Finishes

  • White


  • Beige


  • Grey


Why AmesburyTruth Extrusions?

AmesburyTruth is the leading manufacturer of custom thermoplastic extrusions and aluminum extrusions for the fenestration market. So when quality counts, count on the extrusion leader; AmesburyTruth.