National Marker N115105 Spring Door Hinge 3 in 2-pack

Product Description

The NATIONAL MARKER N115105 is a full-surface spring door hinge designed for interior door applications where a self-closing function is required. Part of the V125 series, this 3-inch hinge is constructed from cold-rolled steel with a galvanized finish and features a solid brass adjustable collar. The fully enclosed spring mechanism provides reliable, consistent closing force. A stud pin allows the installer to adjust closing speed to suit the application. No mortising is required, making installation straightforward on standard door frames.

This hinge suits residential and light commercial door installations where self-closing doors are needed. It is compatible with both right-hand and left-hand door swings, making it a versatile replacement or new-installation option. Each pack includes one pair of hinges with mounting screws included. Licensed contractors and experienced handymen typically handle installation as part of door hardware service or code-required self-closing door compliance work.

Key Features

• Full-surface mount design — no mortising required for installation
• Compatible with right-hand and left-hand door swing configurations
• Adjustable stud pin controls door closing speed
• Fully enclosed spring for durability and consistent closing force
• Solid brass adjustable collar for secure spring tension setting
• Includes mounting screws — ready to install out of the pack

Compatibility

Designed as a full-surface replacement or new-installation spring hinge for standard residential and light commercial interior doors. Fits both right-hand and left-hand door applications. Part of the V125 series product line.

Installation Notes

Installation is performed by a carpenter, door hardware technician, or qualified handyman using standard hand tools. Before beginning, ensure the door is secured in an open position and that no load is placed on the hinge during adjustment. Set the stud pin to the desired closing speed before final fastener tightening. Follow applicable local building codes for self-closing door requirements in commercial or fire-rated door assemblies.

Technical Specifications

• Series: V125
• Hinge Size: 3 inches
• Material: Cold-rolled steel with galvanized finish
• Collar Material: Solid brass
• Mount Type: Full-surface (no mortising required)
• Door Hand: Universal — right-hand and left-hand compatible
• Package Contents: 1 pair of hinges with screws
• Package Quantity: 2-Pack
• Weight: 1.05 pounds
• UPC: 00038613115101

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N115105