Full Mortise Standard Weight Ball Bearing Hinge in Flat Black Finish Needs SEO Description 4-foot fire-rated rim grooved case

4-foot fire-rated rim grooved case exit device designed for use on single doors or pairs of doors with a mullion

Comes with TBSRT thru bolts for easy installation

Provides secure locking for commercial doors

Made with high-strength steel for durability and longevity

Includes a C keyway for added security and versatility in keying options

Full Mortise Standard Weight Ball Bearing Hinge in Flat Black Finish Needs SEO Description 4-foot fire-rated rim grooved caseBB1279412L1 full mortise ball bearing hinge is perfect for use on standard weight interior or exterior doors. It measures 4 1 2" x 4 1 2" and comes in a sleek flat black finish. The ball bearings provide smooth and quiet operation, while the full mortise design ensures secure and durable installation. This hinge is made of high quality materials and is designed to withstand heavy use and abuse. It is easy to install with screws included, making it a