Blulu 2 Pcs Solid Brass Lever Extension Flush Bolt Solid Brass Flush Bolt - 1"w x 6-3/4" H, for Fire Swinging Hollow Metal and Double Doors(Sliver,12 Inch)

Comprehensive Kit: our package comes with 2 sets of extended flush bolt latches plus full matching mounting screws accessory plates for direct hassle-free installation; Each main plate dimensions: 1"W x 6-3/4"H; Rod length is 12 inches fit for compact-size Left Right Hand fire rated hollow metal single doors lightweight small double fire doors, ideal for short-height interior fire access doors with limited vertical mounting room | Fire Door Compatibility: designed specifically for fire-rated swinging hollow metal doors, they meet the special safety requirements of fire doors; While ensuring normal door opening and closing, they enhance door stability and sealing, providing reliable support for fire safety, making them an ideal choice for fire doors | Durable Material: made of brass, they offer enhanced corrosion and wear resistance; Even with long-term use and in humid environments, they maintain excellent structural stability and surface quality, extending their service life | Enhanced Security: as concealed latches, they are concealed within the door after installation, making them difficult to be damaged by external forces; They effectively prevent accidental opening, enhancing the door's security and safety; Furthermore, they ensure the door remains securely closed in emergencies, facilitating fire control and evacuation | Easy Operation: the lever-type extension design; Make latch opening and closing easier and more convenient; With a simple flick of the lever, the latch extends and retracts, effortlessly locking and unlocking the door, enhancing the user experience and making it particularly suitable for frequent door opening and closing