National Mfg N351-504 Corner Brace 4.5 in Black Steel 5 Pack

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N351-504 is a black powder coated steel corner brace designed to reinforce 90 degree angles in wood, metal, and composite building materials. Measuring 4.5 inches in length with a 1.5 inch width and 1/8 inch thickness, this flat corner brace mounts flush to the side of the angle joint for a low-profile, structurally sound connection. The powder coat finish provides corrosion resistance for both interior and light exterior applications. This package contains 5 braces, sold as a boxed loose unit, making it well suited for contractors, carpenters, and general construction tradespeople who need reliable angle hardware in bulk.

This corner brace is commonly used in residential and light commercial construction and repair work where framing members, cabinet boxes, shelving, furniture, or other structural assemblies meet at 90 degree angles. Installers apply the brace to the side face of the joint to add rigidity and prevent racking. The black powder coated finish allows it to blend into finished or painted surfaces without additional treatment. With a package quantity of 5 units per box, the N351-504 suits small-scale projects and service call stock alike.

Key Features

• 4.5 inch length provides substantial bearing surface across the joint
• 1.5 inch width with 1/8 inch steel thickness for rigid, durable reinforcement
• Black powder coated finish resists corrosion and blends with dark or painted surfaces
• Mounts to the side of the angle for flush, low-profile installation
• Packaged in a quantity of 5 braces per box for convenient jobsite use

Compatibility

Designed as an OEM-style flat corner brace for reinforcing 90 degree angle joints in standard wood, metal, and composite building material assemblies.

Installation Notes

Installation is typically performed by carpenters, framers, or general contractors using standard hand tools or a drill driver. Fasten the brace securely to both sides of the joint using appropriately sized screws or bolts for the base material. Ensure the mating surfaces are flush and square before fastening to maintain the 90 degree angle. Follow applicable local building codes for structural fastener requirements.