Value Collection C86314 Serrated Flange Nut 5/16-18 100-pack

Product Description

The VALUE COLLECTION C86314 is a serrated flange nut designed for secure fastening in mechanical and structural assemblies. The integrated serrated flange distributes clamping load across a wider bearing surface and bites into the mating material to resist loosening under vibration. Manufactured from Grade 2 steel with a zinc-plated finish for basic corrosion resistance, this nut accepts a 5/16-18 UNC thread and features a 13/16-inch flange diameter with a flange height of 0.283 inches. Sold in a package of 100, it suits high-volume trade applications in HVAC equipment assembly, electrical panel mounting, plumbing fixture installation, and general mechanical fabrication.

This fastener is appropriate for light to medium-duty applications where a standard hex nut with an integrated locking flange is required. The serrated bearing surface makes it well-suited for use on sheet metal, brackets, and equipment enclosures where vibration is a concern. The zinc-plated finish provides adequate protection in dry indoor environments. Installers in HVAC, electrical, and general mechanical trades commonly use this nut when assembling equipment frames, mounting components, or securing cover panels requiring a reliable, self-locking connection.

Key Features

• Serrated flange locks against mating surface to resist loosening under vibration
• 5/16-18 UNC thread size for compatibility with standard fractional fastener hardware
• 13/16-inch flange diameter distributes clamping load over a wider bearing area
• Grade 2 steel construction provides adequate strength for light to medium-duty applications
• Zinc-plated finish offers basic corrosion resistance in dry indoor environments
• Packaged in quantities of 100 for efficient use in production and service work

Compatibility

Designed for use with 5/16-18 UNC threaded fasteners and bolts in standard inch-measurement assemblies. Suitable as a general-purpose serrated flange nut wherever this thread size and flange geometry are specified.

Installation Notes

Installation should be performed by a qualified mechanic or tradesperson familiar with standard fastener torque practices for Grade 2 steel hardware. Ensure mating threads are clean and free of debris before installation. Apply torque evenly and do not exceed the rated capacity for Grade 2 fasteners at this thread size. The serrated flange is designed for use on bare metal or lightly coated surfaces — avoid installing over thick paint or non-metallic materials where the serrations cannot seat properly.