National Mfg N342-501 Extra Heavy T Hinge 4in Stainless

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N342-501 is a 4-inch extra heavy T hinge constructed from stainless steel for long-term rust resistance in demanding outdoor and high-moisture environments. This hinge features a patented bearing design that eliminates metal-to-metal contact, resulting in smooth, quiet operation over repeated use cycles. Offset screw holes add holding strength at the mounting surface. A tight pin configuration supports both right-hand and left-hand door applications. Licensed contractors, finish carpenters, and skilled trades installers working on gates, barn doors, or heavy exterior doors will find this hinge suited to structural and aesthetic requirements.

The N342-501 is rated for use with premium wood species including cedar and redwood, making it a practical choice for exterior fence gates, shed doors, and similar installations where tannin-rich or naturally oily woods can accelerate corrosion on lesser hardware. The stainless steel construction meets ACC-safe standards, confirming compatibility with ACQ and other preservative-treated lumber commonly used in residential and light commercial construction. Sold as one hinge per pack.

Key Features

• Stainless steel construction resists rust and corrosion in outdoor and high-moisture environments
• Patented bearing design eliminates metal-to-metal contact for smooth, quiet swing
• ACC-safe rating confirms compatibility with ACQ pressure-treated and preservative-treated lumber
• Safe for use with premium woods such as cedar and redwood
• Offset screw holes provide increased fastener holding strength
• Tight pin design accommodates right-hand or left-hand door and gate applications

Compatibility

Designed as an OEM-style heavy-duty T hinge suitable for exterior gates, shed doors, barn doors, and similar heavy-swing applications where stainless steel hardware and ACC-safe certification are required.

Installation Notes

Installation is typically performed by carpenters, general contractors, or experienced DIYers using standard wood screws and a drill or screwdriver. Before installation, confirm door or gate weight falls within the hinge load rating. Pre-drill pilot holes in dense or hardwood species such as cedar and redwood to prevent splitting. Use fasteners appropriate for the lumber treatment type to maintain corrosion resistance at the connection point.