National Mfg N351-503 Open Bar Holder 6.3 in Black Steel

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N351-503 is a black powder coated steel open bar holder designed to reinforce doorways against forced entry. It provides secure placement of a standard 2x4 lumber against the entry side of a door, creating a solid mechanical barrier. The bar holder measures 6.3 inches by 1.5 inches and features an open-top design that allows the 2x4 to be lifted out of the holder when not in use. This hardware is packaged in a box, sold loose, and is suitable for installation by general contractors, carpenters, or experienced DIYers working on door security upgrades.

This open bar holder is used in residential and light commercial applications where door reinforcement against forced entry is required. It mounts on the entry side of a door frame or wall surface, holding a standard 2x4 horizontally across the door. The open-top profile allows for quick removal of the 2x4 when the barrier is not needed. Each package contains 5 units, making it suitable for multi-door installations or projects requiring paired placement on both sides of a door opening.

Key Features

• Black powder coated steel construction for durability and corrosion resistance
• Open-top design allows easy placement and removal of a standard 2x4
• Measures 6.3 inches by 1.5 inches for a secure, stable fit around standard lumber
• Designed to reinforce doors against forced entry on the entry side
• Package quantity of 5 units per box for multi-point or multi-door installations

Compatibility

Designed as an OEM-style door security bar holder compatible with standard 2x4 dimensional lumber used in residential and light commercial door reinforcement applications.

Installation Notes

Installation is typically performed by a general contractor, carpenter, or qualified DIYer using standard fasteners and hand tools. Power down or secure the work area before drilling into door frames or structural walls. Mount the bar holders at a height and spacing that ensures the 2x4 seats flush against the door without gaps. Verify that the mounting surface provides adequate structural support to withstand the intended security load.