Deltana MB175U3 Mortise Bolt Bright Brass

Product Description

The DELTANA MB175U3 is a mortise bolt designed for residential and light commercial door applications. This hardware component mounts into a mortised pocket in the door edge, providing a concealed latch or security bolt function controlled from the edge face. The MB175U3 is finished in Bright Brass, making it a common choice for matching period-appropriate or traditional door hardware sets. At 0.2 pounds, it is a compact unit measuring 2 inches in length, 1 inch in width, and 0.5 inches in height. Installation is straightforward for door hardware technicians and finish carpenters working with pre-mortised or site-mortised door stiles.

Mortise bolts are used in residential entry doors, interior passage doors, cabinet doors, and French doors where a flush, concealed bolt is required. The MB175U3 suits applications where surface-mounted hardware is not acceptable and a clean door-edge profile is required. It is sold individually and is appropriate for new construction as well as replacement or renovation projects requiring a Bright Brass finish match.

Key Features

• Bright Brass (U3) finish for traditional and transitional door hardware applications
• Compact profile: 2 inches long, 1 inch wide, 0.5 inches in height
• Mortise-style installation for a flush, concealed look on door edges
• Lightweight at 0.2 pounds, suitable for standard door stile thicknesses
• Sold individually (each) with a case quantity of 150 for contractor restocking

Compatibility

Designed as an OEM-style replacement or new-installation mortise bolt for standard residential and light commercial door assemblies requiring a mortised edge bolt in a Bright Brass finish.

Installation Notes

Mortise bolts are typically installed by carpenters, door hardware technicians, or finish tradespeople. Before installation, confirm door stile thickness and mortise pocket dimensions match the bolt body to ensure a flush fit. Chisel or rout the mortise to the correct depth before seating the bolt so the faceplate sits flush with the door edge. No electrical shutoff is required for this hardware type.

WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.