Full Mortise Butt Hinges, Spring Hinges

Full mortise butt hinges are the most commonly used type of hinge on commercial doors. The hinge sits flush with the surface of the door and frame when installed, leaving a smooth finished appearance. Spring hinges are used for automatic closing of fire doors, when a door closer cannot be used.

Design Hardware - BB5 NRP – 4.5″ x 4.5″ NRP Ball Bearing Hinge (Non-Removable Pin)
Multiple Finishes
Starting at: $6.36
Usage: Medium Duty
Design Hardware - BB5-HW NRP – 4.5″ x 4.5″ Heavy Weight NRP Ball Bearing Hinge (Non-Removable Pin)
Multiple Finishes
Starting at: $17.50
Usage: Heavy Duty

Full Mortise Butt Hinges

Design Hardware - BB5 NRP – 4.5″ x 4.5″ NRP Ball Bearing Hinge (Non-Removable Pin)

Design Hardware - BB5-HW NRP – 4.5″ x 4.5″ Heavy Weight NRP Ball Bearing Hinge (Non-Removable Pin)