Value Collection R52001124 Serrated Flange Bolt 5/16-18

Product Description

The VALUE COLLECTION R52001124 is a serrated flange bolt designed for general fastening applications where a built-in locking surface is required. It features a 5/16-18 UNC thread profile and is fully threaded along its 1-inch length under head. The integrated serrated flange distributes clamping load across a wider surface area while the serrations bite into the mating material to resist loosening under vibration. The hex drive allows installation with standard wrenches or sockets. Manufactured from AISI C1022 steel to Grade 2 specifications and finished with a zinc plating for corrosion resistance in light-duty service environments.

This bolt is suited for metal fabrication, light structural assemblies, equipment maintenance, and general mechanical fastening where an external lock washer would otherwise be required. The fully threaded shank provides maximum thread engagement across short grip lengths. It is commonly installed by maintenance technicians, millwrights, and general tradespeople working with steel assemblies, brackets, panels, and enclosures that see moderate vibration.

Key Features

• 5/16-18 UNC thread for compatibility with standard inch-series tapped holes and nuts
• Fully threaded along the entire 1-inch length under head for maximum engagement in thin-material applications
• Serrated flange diameter of 0.686 to 0.706 inches distributes load and resists back-out without a separate lock washer
• Grade 2 AISI C1022 steel construction provides adequate strength for general-purpose fastening
• Zinc-plated finish offers baseline corrosion protection in indoor and sheltered environments
• Hex drive head compatible with standard wrenches, sockets, and nut drivers

Compatibility

Designed as a standard inch-series serrated flange bolt for use in any application requiring a 5/16-18 UNC threaded fastener with an integrated locking flange.

Installation Notes

Installation is performed with a standard hex wrench or socket set sized for the bolt head. Ensure the mating tapped hole or nut is clean and free of debris before driving. Do not exceed the torque rating for Grade 2 fasteners as published in applicable fastener standards. Zinc-plated fasteners are not recommended for outdoor exposure or chemically aggressive environments without additional protective measures.