Gibraltar 41602G Flange Nut 5/16-18 3/4 Inch Black Oxide Steel

Product Description

The GIBRALTAR 41602G is a 5/16-18 flange nut manufactured from Grade 12L14 steel with a black oxide finish. The integrated flange distributes clamping load across a wider bearing surface, reducing the need for a separate washer and improving joint integrity under vibration. The nut measures 3/4 inch in flange diameter, 9/16 inch across flats, and 3/8 inch in overall height, with a flange height of 1/8 inch. Meets TCMAI fastener standards. Weighing approximately 0.03 pounds per unit, this nut suits applications where a compact, corrosion-resistant fastening solution is required in mechanical and structural assemblies.

The GIBRALTAR 41602G is suited for light mechanical assemblies, HVAC equipment panels, electrical enclosures, plumbing bracket systems, and general trade fabrication work. The black oxide finish provides moderate corrosion resistance in dry to low-humidity indoor environments. Installers working in sheet metal, ductwork framing, or equipment mounting applications will find the flanged bearing surface useful for securing components to thin-gauge materials without additional hardware. Sold individually with a minimum order quantity of 10 units.

Key Features

• 5/16-18 unified coarse thread for broad hardware compatibility
• Grade 12L14 steel construction for consistent machinability and strength
• Black oxide finish provides moderate corrosion resistance and reduced light reflection
• Integrated 3/4 inch flange eliminates need for a separate flat washer
• Meets TCMAI fastener standards
• Compact 3/8 inch overall height fits tight clearance applications

Compatibility

Designed as a standard 5/16-18 unified coarse thread flange nut compatible with any 5/16-18 threaded fastener or stud in inch-measurement mechanical assemblies.

Installation Notes

Installation is performed with a 9/16 inch wrench or socket. Power down or de-energize any equipment before accessing fastener locations on electrical or HVAC panels. Do not exceed the torque capacity appropriate for Grade 12L14 steel at this thread size as specified by applicable mechanical codes. Black oxide finish is not rated for outdoor or high-moisture environments without additional protective coating.