Value Collection KP24737 Serrated Flange Bolt 5/16-18 Unc

Product Description

The VALUE COLLECTION KP24737 is a serrated flange bolt designed for secure, vibration-resistant fastening in mechanical and structural assemblies. The serrated flange face bites into the mating surface as the bolt is tightened, distributing clamp load across a wider area while resisting loosening from vibration or dynamic loads. Thread size is 5/16-18 UNC with a fully threaded shank, 1-1/2 inches length under head, and a flange diameter of 0.68 inches. The bolt is manufactured from Grade 5 steel and finished with a zinc yellow dichromate coating for corrosion resistance. Electricians, HVAC technicians, plumbers, and general mechanical contractors install these in panel assemblies, brackets, equipment frames, and conduit support structures.

This bolt is suited for light- to medium-duty fastening applications in both residential and commercial environments. The fully threaded 5/16-18 UNC configuration allows engagement along the entire shank length, making it effective in thin material applications and short-depth blind holes. The serrated flange eliminates the need for a separate lock washer in most standard installations. Sold in packages of 50, making it appropriate for production assembly, service van stocking, or job-site use where multiple fasteners of this size are required.

Key Features

• Serrated flange face provides vibration resistance without a separate lock washer
• Fully threaded 5/16-18 UNC shank for maximum thread engagement across the full 1-1/2 inch length
• Grade 5 steel construction meets SAE J429 mechanical property requirements
• Zinc yellow dichromate finish provides corrosion resistance for general indoor and light outdoor use
• Flange diameter of 0.68 inches distributes clamping load over a wider bearing surface
• Conforms to ASME B18.6.3 dimensional standards

Compatibility

Designed as a standard 5/16-18 UNC serrated flange bolt suitable for use in any application calling for a hex-drive, fully threaded flange bolt of this thread size and length under head per ASME B18.6.3.

Installation Notes

Install with a standard hex socket or open-end wrench sized for a 5/16-18 UNC hex flange bolt head. Power down or de-energize any electrical equipment before fastening components in or near live panels. Ensure mating threads are clean and free of debris before installation. Do not over-torque, as the serrated flange can deform thin sheet metal substrates if excessive force is applied.