Value Collection KP24726 Serrated Flange Bolt 1/4-20 Unc

Product Description

The VALUE COLLECTION KP24726 is a serrated flange bolt designed for general mechanical fastening applications requiring a secure, vibration-resistant connection. The serrated flange distributes clamping load across a wider bearing surface and bites into the mating material to resist loosening under vibration. Thread size is 1/4-20 UNC with a 1-1/4 inch length under head, fully threaded from the bearing surface to the tip. Flange diameter measures 0.56 inches. The bolt is manufactured from Grade 5 steel and finished with a zinc yellow dichromate coating for corrosion resistance. Drive type is hex. This fastener meets ASME B18.6.3 and SAE J429 standards.

These serrated flange bolts are suited for use in light mechanical assemblies, HVAC equipment mounting, electrical panel hardware, and general industrial fastening where a self-locking bearing surface is preferred over a separate washer. The fully threaded design makes them effective in thin-material applications where maximum thread engagement is needed along the full bolt length. Sold in a package quantity of 50, they are appropriate for service technicians stocking field hardware or assembly operations requiring consistent lot quantities.

Key Features

• Serrated flange provides built-in vibration resistance without a separate lock washer
• Fully threaded 1/4-20 UNC configuration maximizes thread engagement across the entire shank
• Grade 5 steel construction meets SAE J429 mechanical property requirements
• Zinc yellow dichromate finish provides corrosion resistance for moderate-environment use
• 0.56 inch flange diameter spreads clamping load to reduce surface damage
• Hex drive compatible with standard 7/16 inch hex tooling
• Packaged in quantities of 50 for bench stock and service kit use

Compatibility

Designed as a standard 1/4-20 UNC serrated flange bolt suitable for use in any application requiring an inch-series hex flange fastener conforming to ASME B18.6.3 and SAE J429 Grade 5 specifications.

Installation Notes

Installation should be performed with appropriate hex tooling sized for a 1/4-20 UNC fastener. Confirm mating thread condition and clean threads before installation to ensure proper seating of the serrated flange against the work surface. Do not reuse serrated flange bolts in critical joints where the serrations have been compressed, as locking effectiveness is reduced. Follow applicable mechanical codes and equipment manufacturer torque specifications for the joint being assembled.