Hager BB1741 Full Mortise Ball Bearing Hinges with Fasteners – 5-Knuckle Square Corner DesignProfessional Ball Bearing Hinge Solution for Residential ApplicationsThe Hager BB1741 full mortise ball bearing hinges deliver smooth, reliable door operation with professional-grade construction. Available in 3-1/2″ x 3-1/2″ and 4″ x 4″ sizes with .085″ gauge steel construction and .234″ pin diameter for durability. These ANSI A8114 certified hinges feature 5-knuckle design with square corners and include 3/4″ x 9″ flathead fasteners for complete installation convenience.Professional Features & BenefitsSize Options: Available in 3-1/2″ x 3-1/2″ and 4″ x 4″ dimensions to accommodate standard residential door applications.Ball Bearing Operation: Precision ball bearing design ensures smooth door movement and extended service life in residential applications.Heavy-Duty Construction: .085″ gauge steel construction with steel pin and .234″ pin diameter provides exceptional durability and load-bearing capacity.Versatile Installation: Reversible design with square corners allows flexible installation for left-hand or right-hand door configurations.Complete Hardware Package: Includes 3/4″ x 9″ flathead fasteners for wood applications, providing everything needed for installation.Removable Pin Design: Removable pin feature allows easy door removal for maintenance or replacement without disturbing the hinge leaves.ANSI Certified Quality: ANSI A8114 certification ensures compliance with industry standards for residential hinge performance.Multiple Finish Options: Available in various finishes including US3, US4, US5/ABA, US10A, 10R, US15, AN/US15A, US26, and US26D for design coordination.Reversible. Square corners. Removable pin.Technical SpecificationsANSI/BHMA: ANSI A8114Bearing Type: Ball BearingBox Quantity: 2 eachCase Quantity: 3-1/2″ – 100 each, 4″ – 50 eachCertifications: ANSI A8114Commercial/Residential: ResidentialFastener Size – Wood: 3/4″ x 9″ FHFasteners: 3/4″ x 9″ FHFeatures: Reversible. Square corners. Removable pin.Finishes: 3-1/2″ X3-1/2″ – US3, US4, US5/ABA, US10A, 10R, US15, AN/US15A, US26, US26DGauge: .085″Knuckles: 5Material: Steel with steel pinNotesSubcategory: Full Mortise HingesInstallation & OperationReview manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces.Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.Professional ApplicationsResidential Entry DoorsInterior Door ApplicationsMulti-Family Housing ProjectsCustom Home ConstructionDoor Replacement and RenovationProperty Management MaintenanceBuilder and Contractor ProjectsWhy Choose Hager Quality?Hager BB1741 hinges deliver professional-grade reliability with .085″ gauge steel construction and precision ball bearing operation rated for residential applications. ANSI A8114 certification ensures compliance with industry performance standards. Engineered for demanding residential applications where dependable door operation and long-term durability are essential. Full mortise commercial hinge engineered to meet or exceed ANSI standards for door weight, frequency of use, and finish durability.