Hager Hinge BB1279412PNRP Ball Bearing Hinge 4.5x4.5 Nrp

Product Description

The HAGER HINGE BB1279412PNRP is a full mortise, standard weight ball bearing hinge finished in prime coat with a non-removable pin. Designed for commercial and residential door applications, this hinge installs directly into a mortised recess on both the door edge and the frame, providing a flush, low-profile fit. The ball bearing construction reduces friction and supports smooth, consistent door operation over high-cycle use. The non-removable pin adds a tamper-resistant element appropriate for outswing exterior doors and security-sensitive openings. At 4.5 inches by 4.5 inches, this hinge is sized for standard hollow metal and wood doors. The prime coat finish is ready for field painting to match any door or frame finish system.

This hinge is suited for commercial construction, institutional facilities, and residential applications where a full mortise, ball bearing hinge is specified. It is typically installed by commercial door and hardware technicians, finish carpenters, or general contractors during new construction or door replacement. The prime coat finish makes it a common choice on painted steel frames and hollow metal doors that require a field-applied topcoat. The non-removable pin feature is commonly specified by architects and facilities managers for outswing door assemblies requiring additional forced-entry resistance.

Key Features

• Full mortise installation for flush, recessed fit in door edge and frame
• Ball bearing construction for smooth, low-friction operation under heavy use
• Non-removable pin (NRP) provides tamper resistance on outswing doors
• Prime coat finish ready for field painting
• Standard weight designation appropriate for typical commercial door weights
• Sold individually, with case quantity of 48 units available

Compatibility

Designed as an OEM-style replacement or new-construction full mortise ball bearing hinge for standard commercial and residential door and frame assemblies requiring a 4.5-inch by 4.5-inch hinge with a non-removable pin.

Installation Notes

Installation is performed by a qualified door hardware technician or carpenter. Power down any electrified hardware associated with the door opening before beginning work. Mortise pockets in the door edge and frame must be accurately routed to ensure flush seating and proper door alignment. Follow applicable building codes and hardware schedules for hinge quantity and placement requirements based on door height and weight.