Value Collection 3114MWW Serrated Flange Bolt 5/16-18 Unc

Product Description

The VALUE COLLECTION 3114MWW is a serrated flange bolt designed for general fastening applications where a built-in bearing surface and vibration resistance are required. Threaded 5/16-18 UNC fully along its 7/8 inch length under head, this bolt eliminates the need for a separate washer by integrating a serrated flange that bites into the mating surface to resist loosening. Manufactured from AISI C1022 Grade 2 steel with a zinc-plated finish, it provides basic corrosion resistance suitable for indoor and light-duty outdoor use. The hex drive head allows installation with standard wrenches or sockets.

This bolt is suited for light structural, mechanical, and equipment assembly applications across a range of trades and industries. The serrated flange distributes clamping load over a wider area compared to a standard hex bolt, making it a common choice when fastening into sheet metal, brackets, panels, or similar assemblies. The fully threaded shank provides maximum thread engagement across the full 7/8 inch grip length, which is useful when working with thin or variable-thickness materials.

Key Features

• 5/16-18 UNC thread size, fully threaded along the entire 7/8 inch length under head
• Integrated serrated flange (0.686 to 0.706 inches diameter) replaces need for a separate flat washer
• Serrated flange face resists loosening under vibration without additional locking hardware
• AISI C1022 Grade 2 steel construction for reliable performance in general-duty fastening
• Zinc-plated finish provides basic corrosion protection
• Hex drive compatible with standard wrenches, nut drivers, and impact tools

Compatibility

Designed as a general-purpose inch-series serrated flange bolt suitable for use in standard 5/16-18 UNC threaded holes in mechanical assemblies, equipment frames, and sheet metal applications.

Installation Notes

Install with a standard hex wrench, box wrench, or socket driver sized for the hex head. Ensure the mating surface is clean and free of debris so the serrated flange seats fully and engages properly. Do not use with soft or coated surfaces where the serrations could cause unacceptable damage. Follow applicable fastener torque guidelines from the relevant mechanical or structural code for Grade 2 fasteners before final tightening.