SL31 HD600 Heavy Duty Concealed Geared Continuous Hinge Length:83" (for 7'0" door) Full plastic cover standard (metal

Full plastic cover standard (metal cover for plated finishes)

UL Certified for 90-minute fire doors and meeting NFPA 80 requirements

allowing active door to close

butt hinge

and government and military buildings

SL31 HD600 Heavy Duty Concealed Geared Continuous Hinge Length:83" (for 7'0" door) Full plastic cover standard (metalConcealed edge mount architectural grade aluminum hinges. No mortise required. For new construction or renovation retrofit. Hinge failure is the most common cause of entrance failure. The revolutionary SELECT geared continuous hinge puts an end to costly and frustrating hinge failure problems. Flush mounted (no door inset) For 1 3 4" doors SL31 HD600 geared continuous hinges are BHMA Grade 1 certified Lifetime lubrication Anodized after machining